
What is a Primary Air Filter? Types, Efficiency Grades & B2B Sourcing Guide
In commercial HVAC, cleanroom design, and heavy industrial filtration, the primary efficiency air filter (commonly referred to as a primary air filter or
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Combine particle filtration and chemical gas removal in one compact unit. Our V-bank activated carbon filters are designed to eliminate VOCs, odors, and harmful gases while maintaining high-efficiency air filtration, making them the perfect choice for complex industrial air purification.
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Superior Adsorption: High-activity charcoal media designed for effective gas-phase filtration and chemical vapor neutralization.
Dual-Action Performance: Simultaneously filters airborne particles and absorbs unpleasant odors, reducing the need for multiple filter stages.
Low Pressure Drop: The V-bank configuration ensures that the dense carbon media does not obstruct airflow, maintaining system efficiency.
Eco-Friendly & Safe: Fully RoHS compliant materials, ensuring safety for use in regulated pharmaceutical and food processing industries.

Carbon Media: Premium activated carbon fiber or granular impregnated media with high iodine value for maximum absorption.
Frame Construction: Lightweight yet durable ABS or chemically resistant stainless steel options for harsh environments.
Bonding Technology: Advanced ultrasonic bonding ensures the carbon media is securely fixed, preventing granule shedding or bypass.
Industrial Exhaust Control: Removing VOCs and chemical fumes from paint spray booths and chemical manufacturing plants.
Laboratory Safety: Final filtration for fume hoods to protect personnel from hazardous gas exposure.
Commercial Kitchens: High-efficiency odor control for large-scale catering, hotels, and restaurant ventilation.
Public Buildings: Neutralizing traffic pollution and smog in urban air intake systems for airports and hospitals.
Waste Management: Eliminating foul odors in wastewater treatment facilities and recycling centers.

| Feature / Performance | Chuqi Activated Carbon V-bank | Standard Carbon Panel Filter |
| Media Volume | High (W-type deep bed) | Low (Thin layer) |
| Odor Removal Rate | ≥ 95% Efficiency | 60% – 70% |
| Airflow Resistance | Low (due to V-shape area) | High (restricts airflow) |
| Service Life | 6 – 12 Months | 1 – 3 Months |
| Dual-Filtration | Yes (Gas + Particles) | No (Gas only) |
| Dimensions (mm) | Rated Airflow (m3/h) | Initial Resistance (Pa) – Medium (F7-F9) | Initial Resistance (Pa) – Sub-HEPA (E10-E12) | Initial Resistance (Pa) – HEPA (H13-H14) | Filter Media | Dust Holding Capacity (g) |
| 592 × 287 × 292 | 1500 | ≤200 | ≤250 | ≤400 | Fiberglass | 400 |
| 592 × 490 × 292 | 2400 | ≤ 200 | ≤250 | ≤ 400 | Fiberglass | 700 |
| 592 × 592 × 292 | 3000 | ≤ 200 | ≤250 | ≤400 | Fiberglass | 800 |
| 610 × 305 × 292 | 1700 | ≤200 | ≤250 | ≤400 | Fiberglass | 450 |
| 610 × 610 × 292 | 3400 | ≤200 | ≤ 250 | ≤ 400 | Fiberglass | 900 |
| 592 × 287 × 292 | 1500 | ≤120 | ≤200 | ≤300 | Polyester(PP) | 400 |
| 592 × 490 × 292 | 2400 | ≤120 | ≤200 | ≤300 | Polyester(PP) | 700 |
| 592 × 592 × 292 | 3000 | ≤120 | ≤200≤ | 300 | Polyester(PP) | 800 |
| 610 × 305 × 292 | 1700 | ≤120 | ≤200 | ≤300 | Polyester(PP) | 450 |
| 610 × 610 × 292 | 3400 | ≤120 | ≤ 200 | ≤300 | Polyester(PP) | 900 |
As a specialized source manufacturer with 20 years of experience, Chuqi provides professional-grade activated carbon solutions that meet strict international standards. Our products are RoHS compliant and manufactured under ISO 9001:2015 quality management, ensuring your facility stays compliant with environmental regulations while maintaining a clean, odor-free workspace. By combining technical expertise with factory-direct supply, we offer the most reliable and cost-effective gas-phase filtration on the market.

A: Our filters are highly effective against a wide range of Volatile Organic Compounds (VOCs), including benzene, formaldehyde, and ammonia. They are also designed to neutralize common industrial and commercial odors, such as smoke, chemical fumes from paint spray booths, and organic smells from wastewater treatment or commercial kitchens.
A: We utilize advanced ultrasonic bonding technology and high-density carbon media to ensure that all carbon particles are securely fixed within the filter structure. This prevents any carbon dust from shedding into the clean air stream. Additionally, our dual-component sealant ensures a 100% leak-proof seal between the media and the frame, preventing any gas bypass.
A: Not in our design. By using a V-bank configuration, we significantly increase the effective filtration surface area compared to standard flat panel filters. This allows the air to pass through the dense carbon media at a lower velocity, maintaining a low pressure drop while ensuring sufficient contact time for maximum gas adsorption.
A: The service life generally ranges from 6 to 12 months, depending on the concentration of pollutants and the airflow volume. Because our filters have a high iodine value and a deep-bed W-type structure, they offer a much higher adsorption capacity and a longer lifespan than thin carbon mats or panels.
A: Yes. All materials used in our filters are RoHS compliant, meaning they are free from hazardous substances. As an ISO 9001:2015 certified manufacturer with 20 years of experience, we ensure that our products meet the strict safety and hygiene standards required for regulated industries like food processing and laboratory ventilation.

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