Air Filters for Data Centers – HVAC, AHU, CRAC and Particulate Filtration

Air Filters for Data Centers are filtration products used in HVAC, Air Handling Units, Computer Room Air Conditioners, Computer Room Air Handlers, fresh-air systems and other cooling or ventilation equipment serving critical IT environments.

The primary objective is to reduce airborne dust and particulate contamination before it reaches servers, storage systems, network equipment, printed circuit boards, heat sinks and cooling equipment.

Data centers can also be affected by gaseous contamination in polluted or industrial environments. Where this risk exists, specialized Activated Carbon Filters, Impregnated Carbon Filters or Molecular Filters may be incorporated into the air-treatment strategy.

VIETPHAT supplies Data Center Air Filters including Pre Filters, Panel Filters, Pleated Filters, Bag Filters, Fine Filters, Compact Filters, V-Bank Filters and Activated Carbon Filters in standard and custom configurations.

What Are Air Filters for Data Centers?

Data Center Air Filters are filters installed in cooling and ventilation systems to remove airborne particulate contamination and, where appropriate, selected gaseous contaminants from air entering or circulating through IT spaces.

Depending on filter efficiency and tested performance, they may help reduce:

• Coarse dust.
• Fibers and lint.
• PM10.
• PM2.5.
• PM1.
• Fine airborne particles.
• Outdoor pollution particles.
• Selected gaseous contaminants when suitable gas-phase media is installed.

Data-center filtration should be selected according to the cooling architecture, outdoor-air strategy, local pollution conditions, equipment requirements and acceptable system pressure drop.

Why Are Air Filters Important in Data Centers?

Modern IT equipment contains densely packed electronic components and requires large volumes of cooling air. Dust entering the facility can accumulate on equipment and cooling surfaces.

Suitable filtration can help:

• Reduce dust deposition on electronic equipment.
• Protect server and network hardware.
• Keep heat sinks and cooling surfaces cleaner.
• Protect cooling coils.
• Reduce particulate contamination entering with outdoor air.
• Support cleaner server-room conditions.
• Reduce loading inside CRAC and CRAH equipment.
• Support equipment reliability.

Particulate and Gaseous Contamination in Data Centers

Data-center air-quality problems can generally be divided into two major categories:

• Particulate Contamination: Dust, fibers, fine particles and other solid airborne material.
• Gaseous Contamination: Corrosive or reactive gases that may affect electronic components.

ASHRAE guidance recognizes both particulate and gaseous contamination as potential reliability concerns for data-center equipment.

How Do Data Center Air Filters Work?

Particulate filters use fibrous media to capture airborne particles through several filtration mechanisms.

• Inertial Impaction: Larger particles collide with fibers because they cannot follow rapid changes in airflow direction.
• Interception: Particles following airflow paths contact filter fibers and are retained.
• Diffusion: Very small particles undergo random motion, increasing the probability of contact with the media.
• Electrostatic Effects: Selected filter media may also use electrostatic attraction.

Gas-phase filters operate differently. Activated carbon and specialized molecular media remove selected gases primarily through adsorption or chemisorption.

Main Types of Air Filters for Data Centers

1. Data Center Pre Air Filters

Pre Air Filters are commonly used as the first filtration stage in AHUs, fresh-air systems and cooling equipment.

They help capture larger particles before air reaches:

• Cooling coils.
• Fine Filters.
• Compact Filters.
• V-Bank Filters.
• Gas-phase filtration stages.

Effective pre-filtration can reduce downstream dust loading and help extend filter service life.

2. Data Center Panel Filters

Panel Air Filters are commonly used for primary filtration in data-center HVAC and cooling systems.

Possible constructions include:

• Synthetic panel filters.
• Polyester filters.
• Pleated panel filters.
• Washable panel filters where appropriate.

3. Data Center Pleated Air Filters

Pleated Air Filters provide increased media area within a compact frame.

They may offer:

• Greater media area than flat filters.
• Improved dust-holding capacity.
• Compact installation.
• Different efficiency levels.

4. Data Center Bag Filters

Bag Filters or Pocket Filters can be used as intermediate or fine filtration stages in central data-center AHUs.

Benefits may include:

• Large media area.
• Good dust-holding capacity.
• Suitability for high airflow.
• Longer service intervals under suitable conditions.

5. Data Center Fine Air Filters

Fine Air Filters are used where greater removal of smaller particles is required.

Depending on tested ISO 16890 performance, filters may be selected for:

• ePM10.
• ePM2.5.
• ePM1.

6. Data Center Compact Air Filters

Compact Air Filters use extended pleated media in a rigid housing.

They are suitable for applications requiring:

• Higher filtration efficiency.
• High airflow.
• Compact installation depth.
• Stable mechanical construction.

7. Data Center V-Bank Filters

V-Bank Filters arrange several mini-pleat filter packs in a V configuration.

This construction provides a large filtration area within a relatively compact depth and can be useful in high-airflow data-center ventilation systems.

Potential advantages include:

• High airflow capacity.
• Large media area.
• Compact installation.
• Good dust-holding performance.
• Potentially favorable pressure-drop characteristics depending on design.

8. Data Center Activated Carbon Filters

Activated Carbon Filters may be used when the data center is exposed to selected gaseous pollutants or odors.

Depending on media type, gas-phase filtration may target selected:

• Organic vapors.
• Odors.
• Industrial gaseous contaminants.
• Corrosive contaminants.

Standard activated carbon does not remove every gas. Impregnated carbon or specialized molecular media may be necessary for particular corrosive contaminants.

9. HEPA Filters for Data Centers

HEPA Filters provide high-efficiency particulate filtration, but they are not automatically required for ordinary data centers.

Installing HEPA filtration without evaluating system design can introduce unnecessary resistance and increase fan energy consumption.

HEPA filters should therefore be selected only when the application, equipment requirement or contamination-control strategy justifies their use.

Data Center Air Filter Types at a Glance

Filter Type	Main Function	Typical Position	Typical Application
Pre Filter	Coarse dust capture	First stage	AHU / Fresh Air / CRAC
Panel Filter	Primary filtration	First stage	CRAC / CRAH / HVAC
Pleated Filter	General particulate filtration	Primary / Intermediate	Data center cooling
Bag Filter	Medium / fine filtration	Intermediate stage	Central AHU
Fine Filter	Fine particulate control	Intermediate / Final	Fresh-air AHU
Compact / V-Bank	High-capacity fine filtration	Intermediate / Final	High-airflow systems
Carbon / Molecular Filter	Selected gas control	Dedicated gas-phase stage	Polluted / corrosive environments
HEPA Filter	High-efficiency particle filtration	Final stage	Special applications

Air Filters for Data Center HVAC Systems

Data-center HVAC systems must remove substantial heat loads while maintaining suitable environmental conditions for IT equipment.

Air filtration should therefore balance:

• Particle removal efficiency.
• Airflow requirements.
• Pressure drop.
• Dust-holding capacity.
• Fan energy consumption.
• Filter service life.

Air Filters for Data Center AHUs

Air Handling Units serving data centers may handle outdoor air, return air or a combination of both.

A typical filtration arrangement may include:

• Pre Filter.
• Fine Filter.
• Compact or V-Bank Filter where required.
• Gas-phase filter where required.

Air Filters for CRAC Units

CRAC stands for Computer Room Air Conditioner.

CRAC units circulate and cool air inside server rooms and data centers. Filters installed in these units help prevent dust from accumulating on:

• Cooling coils.
• Fans.
• Internal equipment.
• Server hardware.

Filter pressure drop is especially important because the replacement filter must remain compatible with the CRAC fan and design airflow.

Air Filters for CRAH Units

CRAH stands for Computer Room Air Handler.

CRAH units typically use chilled-water coils rather than direct-expansion refrigeration, but they similarly depend on high-volume airflow.

Suitable filters can help:

• Protect coils.
• Reduce circulating dust.
• Maintain cleaner airflow paths.
• Protect downstream IT equipment.

CRAC vs CRAH Air Filters

Criteria	CRAC	CRAH
Full Name	Computer Room Air Conditioner	Computer Room Air Handler
Cooling System	Typically direct expansion	Typically chilled water
Filter Function	Dust control and coil protection	Dust control and coil protection
Key Filter Parameter	Efficiency + pressure drop	Efficiency + pressure drop

Air Filters for Data Center Fresh-Air Systems

Fresh outdoor air can introduce significant particulate contamination into data centers.

Possible outdoor contaminants include:

• Dust.
• Pollen.
• PM10.
• PM2.5.
• PM1.
• Traffic-related particles.
• Industrial particulate pollution.

Where outdoor air quality is poor, higher-efficiency filtration may be particularly important.

Air Filters for Data Centers with Air-Side Economizers

Air-side economizers use outdoor air for cooling when external conditions are suitable.

This can reduce mechanical cooling energy but may increase exposure to outdoor particulate and gaseous contamination.

Filter selection should therefore consider:

• Outdoor PM concentration.
• Local industrial pollution.
• Seasonal dust conditions.
• Required indoor cleanliness.
• Pressure drop.
• Gas-phase contamination risk.

Air Filters for Data Centers without Air-Side Economizers

Data centers using primarily recirculated room air may experience lower outdoor particle loading than systems introducing large volumes of outdoor air.

However, filtration is still important for controlling particles generated or introduced by:

• Personnel.
• Packaging materials.
• Maintenance activities.
• Construction work.
• Floor systems.
• Outdoor make-up air.

ASHRAE Guidance for Data Center Air Cleanliness

ASHRAE contamination guidance has recommended maintaining data-center environments at approximately ISO 14644-1 Class 8 cleanliness. Historic ASHRAE guidance also describes MERV 8 filtration for continuously recirculated room air and MERV 11 or preferably MERV 13 filtration for air entering a data center without an air-side economizer.

For systems using air-side economizers, filtration should be selected according to actual outdoor conditions and the cleanliness target rather than relying on one universal filter class.

Data Center Air Filters and ISO 14644-1

ISO 14644-1 is a cleanroom classification standard based on airborne particle concentration.

Data centers are not normally treated as semiconductor-style cleanrooms, but particulate cleanliness remains important for equipment reliability.

Air filtration is only one component of maintaining cleanliness. Other factors include:

• Housekeeping.
• Equipment and packaging control.
• Floor cleanliness.
• Construction procedures.
• Airflow management.
• Outdoor-air control.

ISO 16890 for Data Center Air Filters

ISO 16890 classifies general ventilation air filters according to particulate matter efficiency.

Main groups include:

• ISO Coarse.
• ePM10.
• ePM2.5.
• ePM1.

This classification is particularly useful when selecting modern general ventilation filters for data-center AHUs and fresh-air systems.

ISO Coarse Filters for Data Centers

ISO Coarse filters are suitable primarily for larger-particle removal and equipment protection.

They may be used as:

• Pre Filters.
• Coil protection filters.
• First-stage filters.

ePM10 Filters for Data Centers

Filters with suitable ePM10 performance can help reduce larger particulate matter entering ventilation and cooling systems.

ePM2.5 Filters for Data Centers

ePM2.5 performance is particularly relevant where outdoor fine-particle pollution is a concern.

The actual tested efficiency percentage should be reviewed rather than relying only on the generic filter name.

ePM1 Filters for Data Centers

ePM1 Filters provide tested performance against fine particulate matter under ISO 16890.

They may be considered for higher-performance fresh-air filtration where fine particles are a significant concern.

G4, M5, M6, F7, F8 and F9 Data Center Filters

Existing data-center specifications may still use former EN 779 terminology such as:

• G4.
• M5.
• M6.
• F7.
• F8.
• F9.

EN 779 has been replaced by ISO 16890 for general ventilation filtration. For new projects, ISO 16890 performance should generally be considered where available.

MERV Filters for Data Centers

Some data-center specifications use the ASHRAE MERV rating system.

Common terms include:

• MERV 8.
• MERV 11.
• MERV 13.

MERV and ISO 16890 are different classification systems. Approximate comparisons may be useful during preliminary selection, but one rating should not be treated as an exact direct conversion to the other.

MERV 8 Filters for Data Centers

MERV 8 filters have historically been referenced for continuous recirculation filtration in certain data-center environments.

They primarily provide general dust control rather than high-efficiency fine-particle filtration.

MERV 11 Filters for Data Centers

MERV 11 filters provide improved particle capture compared with lower MERV filters and have historically been referenced for filtering air entering certain data-center environments.

MERV 13 Filters for Data Centers

MERV 13 provides greater fine-particle filtration and has historically been identified as a preferred level for entering air in relevant ASHRAE data-center guidance.

However, the actual filter selection should still consider system pressure drop, airflow and local contamination conditions.

Do Data Centers Need HEPA Filters?

Most conventional data centers do not automatically require HEPA filtration.

HEPA may be justified for specialized environments, but using HEPA where it is unnecessary can:

• Increase pressure drop.
• Increase fan energy.
• Require fan upgrades.
• Increase replacement cost.
• Increase maintenance complexity.

For many data-center HVAC systems, properly selected general ventilation filters provide the required particulate control.

Data Center Air Filters for PM10

PM10 can originate from outdoor dust, construction activity and general environmental contamination.

Suitable ISO 16890 filters can help reduce PM10 entering the data center.

Data Center Air Filters for PM2.5

PM2.5 is particularly relevant in urban and industrial locations.

Filters with suitable tested ePM2.5 or ePM1 performance can be used to reduce fine-particle ingress through outdoor-air systems.

Data Center Air Filters for PM1

PM1 consists of very fine airborne particles.

Suitable ePM1 filtration may be considered where higher fine-particle control is required.

Particulate Contamination and Server Equipment

Dust can accumulate on electronic and cooling components.

Potential consequences include:

• Restricted airflow through heat sinks.
• Contaminated fan assemblies.
• Dirty cooling coils.
• Deposits on printed circuit boards.
• Higher cleaning requirements.

Gaseous Contamination in Data Centers

Gaseous contamination can be a significant concern in facilities located near:

• Industrial plants.
• Chemical facilities.
• Wastewater treatment facilities.
• High-traffic urban areas.
• Coastal industrial environments.
• Other pollution sources.

Reactive gases may contribute to corrosion of sensitive electronic components.

Copper and Silver Corrosion in Data Centers

Electronic equipment can be susceptible to corrosion in polluted environments.

ASHRAE guidance discusses copper creep corrosion and silver creep corrosion as important failure mechanisms associated with corrosive contamination.

Where gaseous contamination is suspected, environmental monitoring may be necessary rather than relying solely on visual inspection.

Activated Carbon Filters for Data Centers

Activated Carbon Filters can help remove selected gaseous contaminants from supply or recirculated air.

Available configurations may include:

• Carbon panel filters.
• Carbon pleated filters.
• Carbon cartridges.
• Carbon modules.
• Activated carbon beds.

Can Activated Carbon Remove All Corrosive Gases?

No.

Standard activated carbon is effective for selected gases and organic compounds but does not remove every corrosive contaminant efficiently.

Specific gases may require:

• Impregnated activated carbon.
• Chemisorption media.
• Specialized molecular filtration media.
• Multi-stage gas-phase filtration.

Molecular Air Filters for Data Centers

Molecular Air Filters may be used where specific gaseous contaminants present a corrosion risk.

Media selection should consider:

• Target contaminant.
• Gas concentration.
• Airflow.
• Contact time.
• Temperature.
• Relative humidity.
• Required removal efficiency.
• Expected media life.

Particulate Filters vs Gas-Phase Filters

Criteria	Particulate Filter	Gas-Phase Filter
Main Target	Dust and particles	Selected gases and vapors
Typical Media	Synthetic / glass fiber	Carbon / chemisorption media
Typical Classification	ISO 16890 / MERV	Application-specific
Loading Indicator	Often differential pressure	Media capacity / breakthrough

Why Pre-Filtration Is Important Before Carbon Filters

Particulate pre-filtration helps protect gas-phase media from dust.

A typical arrangement may include:

• Pre Filter.
• Fine Filter.
• Carbon or Molecular Filter.
• Final particulate filter where required.

Data Center Air Filters and Pressure Drop

Pressure Drop is a critical design parameter because data-center cooling systems move large volumes of air continuously.

Filter resistance depends on:

• Filter efficiency.
• Media area.
• Media construction.
• Filter depth.
• Face velocity.
• Airflow.
• Dust loading.

Initial Pressure Drop

Initial Pressure Drop is the resistance of a clean filter at a specified airflow.

When comparing filters, initial resistance should be evaluated together with:

• Efficiency.
• Dust-holding capacity.
• Expected operating resistance.
• Service life.

Final Pressure Drop

The recommended final pressure drop depends on:

• Filter manufacturer recommendations.
• Available fan static pressure.
• Required cooling airflow.
• Energy strategy.
• System operating requirements.

Data Center Air Filters and Cooling Airflow

Data centers depend on stable airflow to remove heat generated by IT equipment.

An excessively restrictive or heavily loaded filter can reduce airflow if the fan system cannot compensate for the additional resistance.

This is why filter upgrades should be evaluated against fan static-pressure capability rather than selecting a higher-efficiency filter based only on its filtration rating.

Data Center Air Filters and Energy Consumption

Many data-center cooling systems operate 24 hours per day, 365 days per year.

As a result, filter pressure drop can influence long-term fan energy consumption.

A life-cycle evaluation should consider:

• Initial pressure drop.
• Average operating pressure drop.
• Filtration efficiency.
• Dust-holding capacity.
• Filter service life.
• Replacement frequency.
• Fan energy consumption.

High-Capacity Air Filters for Data Centers

High-capacity filters can be useful for facilities with:

• Large outdoor-air volumes.
• High ambient dust loading.
• Air-side economizers.
• Continuous 24/7 operation.
• Long maintenance intervals.

Bag, Compact and V-Bank Filters are commonly considered where high media area and dust-holding capacity are desirable.

Low Pressure Drop Air Filters for Data Centers

Low-resistance filtration can be attractive because of the large and continuous airflow used in data centers.

However, the lowest initial pressure drop should not be the only selection criterion.

A technically suitable filter should balance:

• Required efficiency.
• Initial resistance.
• Average resistance.
• Dust-holding capacity.
• Service life.
• Mechanical reliability.

Dust-Holding Capacity of Data Center Air Filters

Filters with suitable dust-holding capacity can provide longer operating periods before reaching their replacement resistance.

This can help:

• Reduce maintenance frequency.
• Maintain stable airflow.
• Protect downstream filters.
• Reduce replacement labor.

Common Data Center Air Filter Media

Depending on application, filter media may include:

• Synthetic fiber.
• Polyester.
• Glass fiber.
• Fine-fiber media.
• Mini-pleat media.
• Activated carbon.
• Impregnated carbon.
• Specialized molecular media.

Common Data Center Filter Frame Materials

Frames may be manufactured from:

• Galvanized steel.
• Aluminum.
• Plastic.
• Other project-specified materials.

Standard and Custom Data Center Filter Sizes

Data-center cooling equipment may use standard or equipment-specific filter dimensions.

When replacing an existing filter, verify:

• Width.
• Height.
• Depth.
• Actual versus nominal dimensions.
• Filter efficiency.
• Rated airflow.
• Frame type.
• Seal arrangement.

How to Select Air Filters for Data Centers

1. Identify the Cooling Equipment

Determine whether the filter is installed in:

• AHU.
• CRAC.
• CRAH.
• Make-Up Air Unit.
• Fresh-air unit.
• Air-side economizer.
• Other ventilation equipment.

2. Identify the Main Contaminant

Determine whether the main concern is:

• Coarse dust.
• PM10.
• PM2.5.
• PM1.
• Fine particulate contamination.
• Corrosive gases.
• Odors or VOCs.

3. Determine the Required Filter Efficiency

Select an appropriate ISO 16890 or MERV performance level according to system and equipment requirements.

4. Confirm Filter Dimensions

Measure:

Width × Height × Depth (W × H × D)

5. Confirm Rated Airflow

Filter performance and pressure drop should be evaluated at the actual operating airflow.

6. Review Initial Pressure Drop

Ensure the filter does not introduce excessive resistance to the cooling system.

7. Review Dust-Holding Capacity

High dust-holding capacity may be beneficial for long-term operation and outdoor-air systems.

8. Assess Gas-Phase Contamination

If the facility is in a polluted or corrosive environment, evaluate whether molecular filtration is required.

9. Check System Compatibility

Confirm that the CRAC, CRAH or AHU fan can maintain the required airflow with the selected filter.

10. Evaluate Life-Cycle Cost

Compare filter purchase price together with pressure drop, energy, service life and maintenance.

Important Specifications for Data Center Air Filters

Parameter	Description
Dimensions	Width × Height × Depth
Filter Type	Panel / Pleated / Bag / Compact / V-Bank / Carbon
Efficiency	ISO Coarse / ePM10 / ePM2.5 / ePM1 / MERV where specified
Rated Airflow	m³/h
Initial Pressure Drop	Pa at rated airflow
Recommended Final Pressure Drop	According to filter and system requirements
Media	Synthetic / glass fiber / carbon / specialty media
Frame	GI / Aluminum / Plastic
Application	AHU / CRAC / CRAH / Fresh Air
Quantity	Number of filters required

Replacement Air Filters for Data Centers

Replacement filters should not be selected by dimensions alone.

Important replacement parameters include:

• Actual filter dimensions.
• Filter type.
• Efficiency.
• Rated airflow.
• Initial pressure drop.
• Recommended final pressure drop.
• Media construction.
• Frame material.
• Seal configuration.
• Cooling-equipment model.

Custom Air Filters for Data Centers

Depending on construction, VIETPHAT can support custom requirements for:

• Width.
• Height.
• Depth.
• Filter efficiency.
• Media type.
• Frame material.
• Number of pockets.
• Filter depth.
• Gasket arrangement.
• Rated airflow.

When Should Data Center Air Filters Be Replaced?

Replacement should generally be based on actual operating condition rather than a fixed calendar interval alone.

Possible replacement indicators include:

• High differential pressure.
• Reduced airflow.
• Heavy dust loading.
• Damaged filter media.
• Damaged frames.
• Air bypass.
• System alarms.
• Maintenance procedures.

Differential Pressure Monitoring

Differential pressure monitoring is useful for evaluating particulate filter loading.

It may be applied across:

• Pre Filters.
• Bag Filters.
• Fine Filters.
• Compact Filters.
• V-Bank Filters.

Monitoring actual resistance can support condition-based filter replacement.

When Should Carbon Filters Be Replaced?

Carbon and molecular filters should not be evaluated only by pressure drop.

The adsorption media can become chemically saturated without a large increase in airflow resistance.

Replacement may be based on:

• Calculated media life.
• Gas monitoring.
• Corrosion monitoring.
• Media analysis.
• Breakthrough measurements.
• Operating history.

Can Data Center Air Filters Be Washed?

Only filters specifically designed as washable should be cleaned and reused.

Most disposable:

• Pleated Filters.
• Bag Filters.
• Fine Filters.
• Compact Filters.
• V-Bank Filters.

should normally be replaced rather than washed.

How to Extend Data Center Air Filter Service Life

• Use effective pre-filtration.
• Maintain clean outdoor-air intakes.
• Monitor differential pressure.
• Operate within rated airflow.
• Prevent filter bypass.
• Maintain cooling coils and equipment.
• Control internal dust sources.
• Use suitable high-capacity filters where required.

Common Problems with Data Center Air Filters

Incorrect Filter Size

Incorrect dimensions can create bypass around the filter frame.

Excessive Pressure Drop

An overly restrictive filter can reduce cooling airflow and increase fan energy.

Insufficient Filtration Efficiency

A low-efficiency filter may allow excessive fine particles to enter the facility.

Insufficient Dust-Holding Capacity

Filters may require frequent replacement in high-dust environments.

Air Bypass

Incorrect installation, damaged gaskets or poor filter-bank sealing can allow unfiltered air to bypass the media.

Using Particulate Filters for Gas Contamination

Fine particulate filters cannot adequately control many gaseous contaminants. Suitable gas-phase filtration is required where corrosive gases are a concern.

Incorrect Carbon Media

Generic activated carbon may not be suitable for the specific contaminant present at a data-center site.

Life-Cycle Cost of Data Center Air Filters

Because data-center cooling systems frequently operate continuously, filter life-cycle cost can be more important than initial purchase price alone.

Total cost can include:

• Filter purchase price.
• Average operating pressure drop.
• Fan energy consumption.
• Service life.
• Replacement frequency.
• Maintenance labor.
• Disposal.
• Impact on downstream equipment.

Data Center Air Filter Supplier in Vietnam – VIETPHAT

VIETPHAT supplies Air Filters for Data Centers, server rooms, telecom facilities and other critical IT environments.

We support filter selection according to:

• Cooling-system configuration.
• AHU, CRAC or CRAH model.
• Outdoor-air strategy.
• Required filter efficiency.
• Rated airflow.
• Pressure drop.
• Filter dimensions.
• Dust loading.
• Local outdoor-air quality.
• Gas-phase contamination requirements.

VIETPHAT Data Center Air Filter Product Range

• Data Center Pre Filters.
• Data Center Panel Filters.
• Data Center Pleated Filters.
• Data Center Bag Filters.
• Data Center Pocket Filters.
• Data Center Fine Filters.
• Data Center Compact Filters.
• Data Center V-Bank Filters.
• Data Center Activated Carbon Filters.
• Data Center Molecular Filters.
• CRAC Air Filters.
• CRAH Air Filters.
• AHU Filters for Data Centers.
• Custom Data Center Air Filters.
• Replacement Data Center Air Filters.

Applications of VIETPHAT Data Center Air Filters

• Enterprise data centers.
• Hyperscale data centers.
• Colocation data centers.
• Cloud computing facilities.
• Server rooms.
• Telecommunication facilities.
• Network operation centers.
• Banking data centers.
• Financial IT facilities.
• Government data centers.
• AI computing facilities.
• High-performance computing facilities.
• Edge data centers.

Information Required for a Data Center Air Filter Quotation

Required Information	Example
Dimensions	W × H × D in mm
Filter Type	Panel / Pleated / Bag / Compact / V-Bank / Carbon
Efficiency	ePM10 / ePM2.5 / ePM1 / MERV where specified
Rated Airflow	m³/h
Initial Pressure Drop	Pa
Frame Material	GI / Aluminum / Plastic
Equipment	AHU / CRAC / CRAH / Fresh-Air Unit
Gas-Phase Requirement	Target contaminant if applicable
Quantity	Number of filters

Frequently Asked Questions About Air Filters for Data Centers

What Air Filters Are Used in Data Centers?

Data centers may use Pre Filters, Panel Filters, Pleated Filters, Bag Filters, Fine Filters, Compact Filters, V-Bank Filters and gas-phase filters depending on cooling architecture and contamination conditions.

What Filter Is Used in a CRAC Unit?

CRAC units commonly use panel or pleated filters for general particulate control. The correct efficiency and pressure drop should be confirmed from the equipment specification.

What Filter Is Used in a CRAH Unit?

CRAH units may use Panel, Pleated or other suitable filters depending on the equipment design and required room cleanliness.

Do Data Centers Need HEPA Filters?

Not necessarily. Most conventional data centers do not automatically require HEPA filtration. The correct efficiency depends on the equipment, cooling strategy and contamination-control requirements.

What Is the Recommended Data Center Cleanliness Level?

ASHRAE contamination guidance has historically recommended approximately ISO 14644-1 Class 8 cleanliness for data-center environments.

Can Data Center Filters Remove PM2.5?

Yes, filters with suitable tested ePM2.5 or ePM1 performance can help reduce PM2.5 entering through ventilation systems.

Are ePM1 Filters HEPA Filters?

No. ePM1 is a general ventilation classification under ISO 16890. HEPA Filters belong to a separate high-efficiency filtration category.

What Is the Difference Between MERV and ISO 16890?

MERV and ISO 16890 are different filter classification systems. Both describe particulate filtration performance, but their test methods and rating structures differ, so they should not be treated as exact one-to-one equivalents.

Why Is Pressure Drop Important in Data Centers?

Data-center cooling requires high and continuous airflow. Excessive filter resistance can increase fan energy or reduce cooling airflow if the system cannot compensate.

Do Data Centers Need Carbon Filters?

Carbon or molecular filtration may be appropriate when gaseous contamination or corrosion risk is identified. It is not automatically required for every data center.

Can Carbon Filters Protect Electronic Equipment from Corrosion?

Properly selected gas-phase media can help reduce selected corrosive contaminants, but media must be chosen according to the actual contaminant profile.

How Often Should Data Center Air Filters Be Replaced?

Replacement depends on differential pressure, dust loading, airflow, filter condition, environmental conditions and maintenance requirements rather than a fixed interval alone.

Can Data Center Air Filters Be Washed?

Only filters specifically designed as washable should be cleaned. Most disposable Pleated, Bag, Fine, Compact and V-Bank Filters should be replaced.

Can VIETPHAT Supply CRAC and CRAH Filters?

Yes. VIETPHAT can support replacement filters for CRAC and CRAH equipment according to dimensions, efficiency, airflow, pressure drop and existing equipment information.

Can VIETPHAT Supply Custom Data Center Air Filters?

Yes. Depending on construction, filters can be supplied in custom dimensions, efficiencies, media types, frame materials and configurations.

What Information Is Required for a Quotation?

Please provide Width × Height × Depth, filter type, efficiency, rated airflow, pressure drop if available, frame material, equipment type, existing model, quantity and gas-phase requirements where applicable.

Contact VIETPHAT for Air Filters for Data Centers

For technical consultation, replacement selection or quotation for Air Filters for Data Centers, CRAC Filters, CRAH Filters, AHU Filters, Fine Filters, V-Bank Filters and gas-phase filtration, please contact VIETPHAT:

• Zalo / Hotline: 0971 344 344
• Sales: 0827 077 078
• Sales: 0829 077 078
• Email: sales@vietphat.com
• Website: www.vietphat.com

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