Filter Efficiency (%)

Thứ Hai, 31/03/2025

VIETPHAT

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Filter Efficiency (%) – The Key Metric for Air Filtration Performance

When selecting the right air filter for your HVAC system, cleanroom, or industrial process, one of the most important performance indicators is Filter Efficiency (%). This value tells you how effectively a filter can remove airborne particles, including dust, pollen, bacteria, and even viruses. Whether you’re aiming to protect sensitive equipment, maintain product sterility, or simply ensure clean indoor air, understanding filter efficiency helps you make smarter, safer choices.

❓ What is Filter Efficiency (%)?

Filter Efficiency (%) refers to the percentage of airborne particles that an air filter can capture at a specific particle size. The higher the percentage, the more effective the filter is at trapping contaminants from the air stream.

Efficiency is typically measured according to international standards such as:

ISO 16890 – Uses ePM1, ePM2.5, and ePM10 categories
EN 1822 / ISO 29463 – For HEPA & ULPA filters, measured at MPPS (Most Penetrating Particle Size)
ASHRAE 52.2 – Uses MERV ratings for HVAC filters

📊 Common Filter Efficiency Levels by Type

Filter Type	Efficiency (%)	Standards / Typical Use
Panel / Pleated Filter	40%–85% (MERV 6–11)	Offices, schools, residential HVAC
Fine Filter (Bag/V-Bank)	60%–95% (ePM2.5 / MERV 13–15)	Commercial HVAC, hospitals, clean zones
HEPA Filter (H13)	≥99.95% @ 0.3µm	Cleanrooms, labs, hospitals (ISO Class 5–7)
ULPA Filter (U15–U17)	≥99.9995% @ 0.1–0.2µm	Semiconductor, nanotech, aseptic environments
Carbon Filter (Gas phase)	N/A (chemical adsorption)	VOCs, odors, gas removal—not rated by % particles

💡 HEPA filters are tested at their MPPS (usually 0.1–0.3 µm), the most difficult particle size to capture.

✅ Why Filter Efficiency (%) Matters

🛡️ Protects people – Filters with high efficiency reduce exposure to allergens, bacteria, viruses, and fine dust
⚙️ Protects equipment – Prevents particles from entering sensitive machinery or systems
🧪 Supports compliance – Required for ISO 14644, GMP, FDA, or LEED certification
🌬️ Improves air quality – Enhances comfort, safety, and health in indoor spaces
💸 Saves cost long-term – Reduces cleaning, maintenance, and equipment downtime

🏭 Applications Based on Filter Efficiency (%)

🏢 40–70% efficiency – Retail, light office, general ventilation
🏥 80–95% efficiency – Healthcare, labs, food production
🧬 ≥99.95% (HEPA/ULPA) – Cleanrooms, pharma, semiconductors
🏭 High-dust zones (pre-filters) – Factories, warehouses, paint booths
🧪 VOCs & odor control – Activated carbon + particle filter combination

🌟 Why Choose High-Efficiency Filters from VIETPHAT?

CÔNG TY CỔ PHẦN KỸ THUẬT VIỆT PHÁT (VIETPHAT) supplies air filters with guaranteed Filter Efficiency (%) for every level of application—from basic HVAC to ultra-clean facilities.

With VIETPHAT, you get:

✅ Certified filters tested to ISO 16890, EN 1822, ASHRAE 52.2
✅ Efficiency range: from G4 (coarse) to U17 (ULPA)
✅ Custom sizing, OEM compatibility, full CO/CQ
✅ Technical support and filter performance consulting
✅ Fast nationwide delivery from HCMC & Hanoi warehouses

📞 Contact VIETPHAT to Optimize Filter Efficiency (%) in Your System

📱 Zalo / Hotline: 0971 344 344
📧 Email: sales@vietphat.com
🌐 Website: www.vietphat.com
🚛 Bulk orders – Audit-ready documentation – Free expert consultation

VIETPHAT – Clean Air, Green Life

Improve air quality, system efficiency, and regulatory compliance with high-performance filters rated by Filter Efficiency (%), available now at VIETPHAT.