Air Filters for HVAC Systems – Commercial, Industrial and Cleanroom Filtration

Air Filters for HVAC Systems are essential filtration components used to remove airborne dust, fibers, particulate matter and other contaminants from supply, return and recirculated air in heating, ventilation and air-conditioning systems.

Depending on the required air quality and application, HVAC filtration may include Pre Filters, Panel Filters, Pleated Filters, Bag Filters, Pocket Filters, Fine Filters, Compact Filters, V-Bank Filters, Activated Carbon Filters, HEPA Filters and ULPA Filters.

VIETPHAT supplies a broad range of Air Filters for HVAC Systems used in commercial buildings, factories, hospitals, hotels, shopping centers, offices, data centers, pharmaceutical plants, electronics factories, semiconductor facilities, food processing plants and cleanrooms.

What Are Air Filters for HVAC Systems?

HVAC Air Filters are filtration products installed in heating, ventilation and air-conditioning systems to remove airborne contaminants before air is distributed to occupied spaces or sensitive processes.

Depending on the filter type and efficiency, HVAC Air Filters may help capture:

• Coarse dust.
• Fine dust.
• Fibers.
• Lint.
• Pollen.
• PM10.
• PM2.5.
• PM1.
• Fine particulate matter.
• Selected smoke particles.
• Odors and VOCs when carbon filtration is used.

No single HVAC filter is suitable for every contaminant or application. For this reason, many systems use several filtration stages.

Why Are Air Filters Important in HVAC Systems?

Air Filters are important because HVAC equipment continuously moves large volumes of air through buildings and facilities.

Without suitable filtration, airborne contaminants can accumulate on:

• Cooling coils.
• Heating coils.
• Fans.
• Heat exchangers.
• Ductwork.
• Diffusers.
• Sensitive electronic equipment.
• Production surfaces.

Correct filtration helps protect HVAC equipment while also supporting cleaner air distribution.

Main Functions of HVAC Air Filters

The main functions of Air Filters for HVAC Systems include:

• Capturing airborne particles.
• Protecting HVAC coils and fans.
• Reducing dust accumulation in ducts.
• Supporting indoor air quality.
• Protecting downstream Fine and HEPA Filters.
• Reducing particulate contamination in controlled spaces.
• Supporting process cleanliness.
• Reducing odor and selected VOCs when gas-phase media is used.

How Do HVAC Air Filters Work?

HVAC Air Filters use fibrous, pleated, porous or adsorbent media to remove contaminants as air passes through the filtration section.

Particulate filtration occurs through several mechanisms:

• Sieving: Larger particles are blocked by the filter structure.
• Inertial Impaction: Larger particles collide with filter fibers.
• Interception: Particles following airflow contact fibers and are retained.
• Diffusion: Very small particles move irregularly and contact fibers.
• Electrostatic Effects: Selected media may use electrostatic attraction.

Gas-phase filtration with activated carbon uses adsorption rather than conventional particle capture.

Main Types of Air Filters for HVAC Systems

1. HVAC Pre Air Filters

Pre Air Filters are normally installed as the first filtration stage.

Their main function is to capture larger particles before air reaches cooling coils and downstream higher-efficiency filters.

Common pre-filter constructions include:

• Panel Filters.
• Pleated Filters.
• Synthetic Filters.
• Washable Filters.
• Metal Mesh Filters.

2. HVAC Panel Air Filters

Panel Air Filters are commonly used for coarse and primary filtration in commercial and industrial HVAC systems.

They may use flat or pleated media mounted in:

• Galvanized steel frames.
• Aluminum frames.
• Plastic frames.
• Disposable cardboard frames.

3. HVAC Pleated Air Filters

Pleated Air Filters use folded media to increase filtration surface area within a compact depth.

Potential advantages include:

• Greater media area.
• Improved dust-holding capacity.
• Compact installation.
• Longer service life than some flat-media filters.

4. HVAC Bag Air Filters

Bag Air Filters use multiple flexible pockets to provide a large filtration area.

They are commonly used as medium- and fine-filtration stages in:

• Commercial HVAC systems.
• Air Handling Units.
• Factories.
• Hospitals.
• Hotels.
• Pharmaceutical facilities.

5. HVAC Pocket Air Filters

Pocket Air Filters are closely related to Bag Filters and are commonly used for medium and fine particle filtration.

Depending on tested performance, they may be classified under ISO 16890 as:

• ePM10.
• ePM2.5.
• ePM1.

6. HVAC Fine Air Filters

Fine Air Filters are used where greater removal of small airborne particles is required compared with pre-filtration.

They can help reduce:

• Fine dust.
• PM10.
• PM2.5.
• PM1.

depending on tested filter performance.

7. HVAC Compact Air Filters

Compact Air Filters use extended pleated or mini-pleat media inside a rigid housing.

They are suitable for applications requiring:

• High media area.
• Compact installation depth.
• Higher particulate filtration performance.
• Stable mechanical construction.

8. HVAC V-Bank Air Filters

V-Bank Air Filters use multiple filter packs arranged in a V-shaped configuration.

This design is particularly useful where:

• High airflow is required.
• Installation space is limited.
• Large media area is desirable.
• Continuous HVAC operation is expected.

9. HVAC Activated Carbon Air Filters

Activated Carbon Air Filters are used for gas-phase filtration and odor control rather than conventional dust filtration alone.

Depending on media type, they may help reduce:

• Odors.
• Selected VOCs.
• Organic vapors.
• Selected gaseous contaminants.

Carbon filters are normally used together with particulate filters.

10. HVAC HEPA Air Filters

HEPA Air Filters are used in HVAC systems requiring high-efficiency particulate filtration.

Typical applications include:

• Cleanrooms.
• Hospitals.
• Pharmaceutical facilities.
• Electronics manufacturing.
• Semiconductor facilities.
• Laboratories.

11. HVAC ULPA Air Filters

ULPA Air Filters provide even higher particulate filtration than HEPA filters and are used in selected ultra-clean environments.

HVAC Air Filter Types at a Glance

Filter Type	Main Function	Typical Stage	Typical Application
Pre Filter	Coarse dust removal	First stage	General HVAC
Panel Filter	Primary filtration	First stage	Commercial and industrial HVAC
Pleated Filter	Coarse to medium filtration	First/intermediate stage	Commercial buildings
Bag/Pocket Filter	Medium/fine filtration	Intermediate stage	AHU and industrial HVAC
Compact Filter	Higher-efficiency filtration	Intermediate/final HVAC stage	Industrial and commercial HVAC
V-Bank Filter	High-airflow fine filtration	Intermediate/final HVAC stage	Data centers, large AHUs
Carbon Filter	Odor and gas control	Gas-phase stage	Commercial and industrial HVAC
HEPA Filter	High-efficiency particle filtration	Final stage	Cleanrooms and critical areas
ULPA Filter	Ultra-high-efficiency filtration	Final stage	Semiconductor cleanrooms

Typical HVAC Multi-Stage Filtration

Many HVAC systems use multiple filters because different stages perform different functions.

Two-Stage HVAC Filtration

• Stage 1: Pre Filter.
• Stage 2: Fine Filter.

This configuration is common in commercial buildings and factories.

Three-Stage HVAC Filtration

• Stage 1: Pre Filter.
• Stage 2: Medium or Fine Filter.
• Stage 3: HEPA Filter where required.

HVAC Filtration with Activated Carbon

• Stage 1: Pre Filter.
• Stage 2: Fine Filter.
• Stage 3: Activated Carbon or Molecular Filter.
• Stage 4: High-efficiency final filtration where required.

The actual arrangement should be engineered according to contaminant type, system airflow and indoor air-quality requirements.

Air Filters for HVAC in Air Handling Units

Air Handling Units are one of the most common locations for multi-stage HVAC filtration.

An AHU may use:

• Panel Pre Filters.
• Bag Filters.
• Fine Filters.
• Compact Filters.
• V-Bank Filters.
• Carbon Filters.
• HEPA Filters.

Filter selection should consider airflow, pressure drop, available installation space and required efficiency.

Air Filters for HVAC in Fan Coil Units

Fan Coil Units generally use simpler, lower-resistance filters than central AHUs.

Common FCU filters include:

• Synthetic media filters.
• Mesh filters.
• Washable filters.
• Panel filters.
• Shallow pleated filters.

Because FCU fans usually have limited static-pressure capability, higher-efficiency filters should only be installed after checking airflow and resistance.

Air Filters for Commercial HVAC Systems

Commercial buildings require HVAC filtration to reduce dust and particulate matter from outdoor and recirculated air.

Applications include:

• Office buildings.
• Shopping centers.
• Hotels.
• Airports.
• Schools.
• Convention centers.
• Retail facilities.

Air Filters for Industrial HVAC Systems

Industrial HVAC systems often operate under higher particle-loading conditions than standard commercial buildings.

Applications include:

• Factories.
• Automotive plants.
• Electronics manufacturing.
• Pharmaceutical plants.
• Food processing facilities.
• Warehouses.
• Precision manufacturing.

Air Filters for Factory HVAC Systems

Factories may require different filtration depending on process conditions and surrounding air quality.

Important factors include:

• Dust concentration.
• Particle size.
• Production process.
• Indoor cleanliness requirements.
• Operating hours.
• Outdoor air quality.
• Available fan pressure.

General HVAC filtration is not a substitute for a dedicated dust collector where production processes generate high concentrations of industrial dust.

Air Filters for Hospital HVAC Systems

Hospital HVAC systems may require multiple filtration levels depending on the area served.

Filters may include:

• Pre Filters.
• Fine Filters.
• High Efficiency Filters.
• HEPA Filters.

Critical healthcare areas should follow the applicable HVAC and infection-control design requirements.

Air Filters for Pharmaceutical HVAC Systems

Pharmaceutical facilities require controlled air cleanliness in production and cleanroom areas.

Typical HVAC filtration may include:

• Pre-filtration.
• Fine filtration.
• HEPA filtration.

The required filtration level depends on cleanroom classification and process requirements.

Air Filters for Electronics HVAC Systems

Electronics manufacturing can be sensitive to particulate contamination.

HVAC Air Filters may be used in:

• PCB production.
• Electronics assembly.
• Display manufacturing.
• Battery manufacturing.
• Precision component production.

Air Filters for Semiconductor HVAC Systems

Semiconductor facilities typically require advanced multi-stage filtration.

General HVAC and make-up air systems may use Pre and Fine Filters, while cleanroom final filtration may use HEPA or ULPA Filters.

Air Filters for Cleanroom HVAC Systems

Cleanroom HVAC filtration is designed to progressively reduce airborne particle concentrations.

A typical sequence may include:

• Pre Filter.
• Medium Efficiency Filter.
• Fine Filter.
• HEPA Filter.
• ULPA Filter where required.

Upstream filtration helps reduce loading on expensive HEPA and ULPA final filters.

Air Filters for Data Center HVAC Systems

Data centers require reliable particulate control while maintaining high airflow and efficient cooling.

Compact and V-Bank Air Filters can be suitable because they offer:

• Large media area.
• High airflow capacity.
• Compact construction.
• Good dust-holding potential.
• Controlled pressure drop.

Air Filters for Food Processing HVAC Systems

Food processing plants may use different filter stages in production, packaging, storage and controlled areas.

Filter selection depends on process hygiene and air-quality requirements.

Air Filters for Hotel HVAC Systems

Hotels use HVAC filtration in both central Air Handling Units and local Fan Coil Units.

Central systems may use Pre and Fine Filters, while FCUs generally use compact low-resistance filters.

Activated Carbon Filters may be added where odor control is required.

Air Filters for Office HVAC Systems

Office HVAC systems require reliable filtration for both outdoor and recirculated air.

Proper filter maintenance can help reduce dust accumulation on coils and maintain design airflow.

HVAC Air Filters and ISO 16890

ISO 16890 is widely used for classification of general ventilation air filters.

The principal groups are:

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

This classification allows filter performance to be evaluated according to relevant particulate matter size fractions.

ISO Coarse HVAC Air Filters

ISO Coarse filters are generally used for larger particles and pre-filtration.

They help protect:

• Cooling coils.
• Heating coils.
• Fans.
• Downstream Fine Filters.

ePM10 HVAC Air Filters

ePM10 filters provide tested filtration performance related to particulate matter in the PM10 range.

ePM2.5 HVAC Air Filters

ePM2.5 filters are suitable where greater control of fine particulate pollution is required.

ePM1 HVAC Air Filters

ePM1 filters are commonly selected for higher-grade general ventilation where improved removal of very fine particles is required.

G4, M5, M6, F7, F8 and F9 HVAC Filters

Older HVAC specifications may still reference former EN 779 filter classes such as:

• G4.
• M5.
• M6.
• F7.
• F8.
• F9.

These terms remain common in replacement-filter inquiries, but new general ventilation specifications should generally consider ISO 16890 data where available.

High Efficiency Air Filters for HVAC Systems

Higher-grade HVAC systems may require Fine, Compact or V-Bank Filters with high particulate efficiency.

Such filters are commonly used in:

• Hospitals.
• Data centers.
• Pharmaceutical plants.
• Electronics factories.
• Cleanroom pre-filtration.

HEPA Air Filters for HVAC Systems

HEPA Filters are used in HVAC applications requiring high-efficiency particle control.

Common HEPA requirements may include:

• H13 HEPA Filters.
• H14 HEPA Filters.
• Mini-Pleat HEPA Filters.
• Deep-Pleat HEPA Filters.

HEPA filters should be installed in systems designed for the required pressure drop, sealing and airflow.

Activated Carbon Air Filters for HVAC Systems

Activated Carbon Filters are used for gas-phase filtration rather than particulate filtration alone.

They can be used to help control:

• Odors.
• Selected VOCs.
• Selected organic vapors.
• Selected gaseous contaminants.

Standard activated carbon does not remove every gas. For specific acid, alkaline or corrosive gases, impregnated or specialty molecular media may be required.

HVAC Air Filters for PM10

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

HVAC Air Filters for PM2.5

Filters with suitable tested ePM2.5 or ePM1 performance can help reduce fine particulate matter from outdoor and recirculated air.

HVAC Air Filters for PM1

Where PM1 control is important, filters with suitable tested ePM1 efficiency should be selected.

The actual percentage efficiency should be reviewed rather than relying only on a generic product name.

HVAC Air Filters vs Air Purifier Filters

Criteria	HVAC Air Filter	Air Purifier Filter
Installation	Central or building HVAC	Standalone room equipment
Airflow	Usually higher	Usually lower
Coverage	Building, zone or system	Individual room
Filter Types	Panel, bag, compact, HEPA, carbon	Often pre-filter, HEPA, carbon

HVAC Air Filters vs AHU Filters

HVAC Air Filters is the broader term. It includes filters used in AHUs, FCUs, rooftop units, fresh-air systems and other HVAC equipment.

AHU Filters specifically refer to filters installed in Air Handling Units.

HVAC Air Filters vs FCU Filters

FCU Filters are a subset of HVAC filters designed specifically for Fan Coil Units.

They are generally shallower and lower resistance than the multi-stage filters used in central AHUs.

HVAC Particulate Filters vs Carbon Filters

Criteria	Particulate Filter	Carbon Filter
Main Function	Particle removal	Gas adsorption
Targets	Dust, PM, pollen	Odors, VOCs, selected gases
Media	Synthetic or glass fiber	Activated carbon
Can Replace Each Other?	No	No

HVAC Air Filter Pressure Drop

Pressure Drop is one of the most important technical parameters in HVAC filtration.

Filter resistance is influenced by:

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

As the filter accumulates dust, pressure drop generally increases.

Initial Pressure Drop

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

Lower initial resistance can help reduce fan power demand, but efficiency and service life must also be considered.

Final Pressure Drop

Final Pressure Drop is the selected or manufacturer-recommended resistance at which filter replacement may be considered.

The appropriate replacement point depends on:

• Fan capacity.
• Required airflow.
• Filter type.
• Energy cost.
• Maintenance policy.

HVAC Air Filters and Energy Consumption

Air filters contribute to total HVAC system resistance.

Fan energy requirements can therefore be affected by filter pressure drop throughout the filter life cycle.

When comparing filters, consider:

• Initial pressure drop.
• Average operating pressure drop.
• Filtration efficiency.
• Dust-holding capacity.
• Service life.
• Replacement frequency.

Dust-Holding Capacity of HVAC Air Filters

Dust-holding capacity affects how long a filter can operate before reaching its recommended service limit.

Greater effective media area can help improve:

• Dust retention.
• Filter life.
• Maintenance intervals.
• Downstream filter protection.

Common HVAC Air Filter Media

Common filtration media include:

• Synthetic fiber.
• Polyester.
• Glass fiber.
• Nonwoven media.
• Mini-pleat media.
• Activated carbon media.
• Impregnated carbon media.
• Metal mesh for selected washable applications.

Common HVAC Air Filter Frame Materials

• Galvanized steel.
• Aluminum.
• Plastic.
• Cardboard for selected disposable filters.

Standard and Custom HVAC Air Filter Sizes

HVAC equipment is produced in many dimensions, so filters may be required in standard or custom sizes.

When replacing an existing filter, verify:

• Width.
• Height.
• Depth.
• Frame thickness.
• Installation orientation.
• Filter-bank arrangement.
• Gasket configuration.

Important HVAC Air Filter Specifications

Parameter	Description
Dimensions	Width × Height × Depth
Filter Type	Panel, bag, compact, V-bank, carbon, HEPA
Efficiency	ISO Coarse, ePM10, ePM2.5, ePM1, HEPA or applicable class
Rated Airflow	Design airflow through the filter
Initial Pressure Drop	Resistance when clean
Final Pressure Drop	Recommended service limit
Filter Media	Synthetic, glass fiber, carbon or other media
Frame	GI, aluminum, plastic or cardboard
Seal	Gasket, gel or other configuration
Quantity	Number of filters required

How to Select Air Filters for HVAC Systems

1. Identify the HVAC Equipment

Determine whether the filter is for an AHU, FCU, rooftop unit, Fresh Air Unit or another system.

2. Identify the Contaminant

Determine whether the primary concern is coarse dust, PM10, PM2.5, PM1, HEPA-level particles, odors or gaseous contaminants.

3. Determine the Required Filter Efficiency

Select filtration performance according to indoor air-quality requirements and applicable standards.

4. Confirm Filter Dimensions

Measure Width × Height × Depth accurately to minimize bypass and installation issues.

5. Confirm Rated Airflow

The filter should be selected for the actual airflow through each filter position.

6. Review Pressure Drop

The HVAC fan must have enough static-pressure capability to overcome filter resistance.

7. Evaluate Dust Loading

High-dust environments may require stronger pre-filtration and filters with greater media area.

8. Consider Downstream Filtration

Where Fine, HEPA or ULPA filters are used, effective upstream filters can help extend final-filter life.

9. Review Installation and Sealing

Correct sizing and sealing are necessary to reduce air bypass around the filter frame.

10. Evaluate Life-Cycle Cost

Consider purchase price, pressure drop, service life, replacement frequency and energy consumption together.

How to Measure an Existing HVAC Air Filter

For replacement, measure:

Width × Height × Depth (W × H × D)

Also provide where possible:

• Filter type.
• Filter class.
• Existing brand and model.
• Rated airflow.
• Photos of the filter.
• Photos of the label.
• Quantity.
• Application.

Replacement Air Filters for Existing HVAC Systems

Replacement HVAC filters should match the performance requirements of the existing system rather than physical dimensions alone.

Selection should consider:

• Dimensions.
• Filter efficiency.
• Airflow.
• Pressure drop.
• Media construction.
• Frame material.
• Seal type.
• Application.

Custom Air Filters for HVAC Systems

Depending on product construction, custom HVAC filters can be supplied according to:

• Custom width.
• Custom height.
• Custom depth.
• Required efficiency.
• Media type.
• Frame material.
• Number of pockets.
• Gasket configuration.
• Rated airflow.

When Should HVAC Air Filters Be Replaced?

Replacement should be based on actual filter condition and system performance rather than calendar time alone.

Replacement may be required when:

• Differential pressure reaches the recommended limit.
• Airflow decreases.
• The filter is heavily loaded.
• The media is damaged.
• The frame becomes distorted.
• Air bypass occurs.
• Filter integrity is compromised.

Differential Pressure Monitoring for HVAC Filters

Differential-pressure gauges or sensors can help maintenance teams monitor filter loading.

This is particularly useful for:

• AHUs.
• Bag Filters.
• Fine Filters.
• Compact Filters.
• V-Bank Filters.
• HEPA Filter banks.

Can HVAC 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.
• HEPA Filters.

should generally be replaced rather than washed.

How to Extend HVAC Air Filter Service Life

• Use effective upstream pre-filtration.
• Select sufficient media area.
• Operate filters within rated airflow.
• Prevent air bypass.
• Monitor differential pressure.
• Keep filter housings clean.
• Maintain outdoor-air intake areas.
• Replace damaged filters promptly.

Common HVAC Air Filter Problems

Incorrect Filter Size

Incorrect sizing may create bypass around the filter frame.

Excessive Pressure Drop

A filter that is too restrictive for the system can reduce airflow and increase fan energy requirements.

Insufficient Efficiency

A filter with insufficient particle-removal performance may not meet the required indoor air-quality or process objective.

Insufficient Pre-Filtration

Fine and HEPA filters may become loaded rapidly when upstream coarse filtration is inadequate.

Incorrect Installation

Improper filter orientation, sealing or clamping can reduce system-level filtration performance.

Life-Cycle Cost of HVAC Air Filters

The total cost of HVAC filtration includes:

• Initial purchase price.
• Fan energy consumption.
• Filter service life.
• Maintenance labor.
• Replacement frequency.
• Disposal cost.
• Impact on downstream filters.
• Impact on coil cleanliness.

For large commercial and industrial HVAC systems, pressure drop and service life can have a substantial effect on overall operating cost.

HVAC Air Filter Supplier in Vietnam – VIETPHAT

VIETPHAT supplies Air Filters for HVAC Systems across commercial, industrial and cleanroom applications.

We support filter selection according to:

• HVAC equipment type.
• Application.
• Filter dimensions.
• Required efficiency.
• Airflow.
• Pressure drop.
• Dust-loading conditions.
• Media type.
• Frame construction.
• Installation requirements.

VIETPHAT HVAC Air Filter Product Range

• HVAC Pre Filters.
• HVAC Primary Filters.
• HVAC Panel Filters.
• HVAC Pleated Filters.
• HVAC Bag Filters.
• HVAC Pocket Filters.
• HVAC Medium Efficiency Filters.
• HVAC Fine Filters.
• HVAC Compact Filters.
• HVAC V-Bank Filters.
• HVAC High Efficiency Filters.
• HVAC Activated Carbon Filters.
• HVAC Odor Control Filters.
• HVAC HEPA Filters.
• HVAC ULPA Filters.
• Custom HVAC Filters.
• Replacement HVAC Filters.

Applications of VIETPHAT HVAC Air Filters

• Air Handling Units.
• Fan Coil Units.
• Fresh Air Units.
• Commercial buildings.
• Office buildings.
• Shopping centers.
• Hotels.
• Hospitals.
• Data centers.
• Factories.
• Electronics plants.
• Semiconductor facilities.
• Pharmaceutical plants.
• Food processing facilities.
• Cleanrooms.
• Laboratories.

Information Required for HVAC Air Filter Quotation

Required Information	Example
Filter Dimensions	W × H × D in mm
Filter Type	Panel / Bag / Compact / HEPA
Efficiency	ISO Coarse / ePM10 / ePM2.5 / ePM1 / H13 / H14
Airflow	m³/h
Pressure Drop	Pa if specified
Frame Material	GI / Aluminum / Plastic
Quantity	Number of filters
Application	Building / Factory / Hospital / Cleanroom

Frequently Asked Questions About Air Filters for HVAC Systems

What Are HVAC Air Filters?

HVAC Air Filters are filters installed in heating, ventilation and air-conditioning systems to remove airborne particles and, in selected designs, odors or gaseous contaminants.

What Types of Air Filters Are Used in HVAC Systems?

Common types include Pre Filters, Panel Filters, Pleated Filters, Bag Filters, Pocket Filters, Fine Filters, Compact Filters, V-Bank Filters, Carbon Filters and HEPA Filters.

Which HVAC Filter Is Best?

There is no single best filter for every HVAC system. Selection depends on contaminant type, required efficiency, airflow, pressure drop, installation space and application.

Which HVAC Filter Is Suitable for PM2.5?

A filter with suitable tested ePM2.5 or ePM1 performance should be considered. Actual ISO 16890 efficiency should be reviewed for the specific product.

Which HVAC Filter Is Suitable for PM1?

Filters with suitable tested ePM1 efficiency are commonly used where improved removal of very fine particulate matter is required.

Can HVAC Systems Use HEPA Filters?

Yes, provided the system is designed for the required airflow, pressure drop, filter housing and sealing.

Can HVAC Systems Use Activated Carbon Filters?

Yes. Activated Carbon Filters can be used for odor, VOC and selected gaseous contaminant control, normally together with particulate filtration.

What Is the Difference Between HVAC Filters and AHU Filters?

HVAC Air Filters is a broad term covering filters used throughout HVAC systems, while AHU Filters specifically refer to filters installed in Air Handling Units.

What Is the Difference Between HVAC Filters and FCU Filters?

FCU Filters are generally compact low-resistance filters designed for Fan Coil Units, while HVAC filters can include everything from coarse Panel Filters to HEPA Filters.

How Often Should HVAC Air Filters Be Replaced?

Replacement depends on dust loading, operating hours, airflow, differential pressure, filter type and system maintenance requirements.

Can HVAC Filters Be Washed?

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

Can VIETPHAT Supply Custom HVAC Filters?

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

Can VIETPHAT Supply Replacement Filters for Existing HVAC Systems?

Yes. Replacement filters can be selected using existing dimensions, filter class, airflow, photos, labels and application information.

What Information Is Required for a Quotation?

Please provide Width × Height × Depth, filter type, required efficiency, airflow, pressure drop if available, frame material, quantity and application.

Contact VIETPHAT for Air Filters for HVAC Systems

For technical consultation, replacement selection or quotation for Air Filters for HVAC Systems, 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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