ASHRAE Separator Box Filters

  • Filtering range: 1㎛~3㎛ of tiny particles can be effectively filtered.
  • Filtering efficiency: Filtering efficiency reaches 45~95%, improving indoor air quality.
  • Long-term use: Replacement frequency of 6-8 months, saving maintenance costs. (Replacement time depends on environmental requirements)
  • Application Scenario: Suitable for air conditioning systems, factories, residential, commercial and industrial areas.

Medium Efficiency Separator Box Filters

The special filter design can withstand high humidity environments and control the air into a laminar flow condition with low initial pressure loss to extend the service life.
This filter removes airborne contaminants and can be used as a final filter in hospitals, pharmaceutical factories, aerospace and food processing industries.
It can also be used as the front part of a high efficiency mesh in a clean room system.
The filter material is wrapped around the wavy aluminum spacer to form a folded view; PU adhesive is coated around the frame and filter to ensure the airtightness of the filter.


Frame: Wood, Galvanized steel, Aluminum.
Header: Box type, Single, Double header
Media: Wet-laid glass fiber
M6 (EN 779), 60~80% / MERV 11~12 (ASHRAE 52.2)
F7 (EN 779), 80~90% / MERV 13 (ASHRAE 52.2)
F8 (EN 779), 90~95% / MERV 14 (ASHRAE 52.2)
Separator: Aluminum foil
Sealant: Polyurethane (PU)
Fire retardant grade: UL900
Max. Temperature: ≦ 80°C
Max. Humidity: ≦ 100% RH
Rec. Final Pressure Drop: ≦ 350 Pa


✔ Control airflow under high humidity
✔ Hammed edges eliminate possible pleat damage
✔ Extend life span with low initial resistance
✔ Comply with UL900 flame retardant


Hospitals, pharmaceutical factories, aerospace, food processing industry, clean rooms.

  1. High Efficiency Filtration: Aluminum spacer filters effectively capture fine particles and pollutants in the air, providing superior filtration and helping to maintain clean air.
  2. Long Service Life: Aluminum material makes the filter stronger and more durable, which can maintain stable performance for a long time, reduce the frequency of replacement, and save the maintenance cost.
  3. Low Resistance and High Efficiency Ventilation: Aluminum spacer filters are well-designed to maintain low air resistance, ensuring the operating efficiency of the air conditioning system and saving energy consumption.
  4. Easy Cleaning and Maintenance: The design of the aluminum spacer filter makes it easy to clean and maintain and can be cleaned regularly to extend its life and maintain consistent performance.
  5. Multi-purpose Application: Primary air filters are widely used in various places, including homes, offices, commercial spaces and so on. Its multi-functional application nature ensures the fulfillment of different needs and provides a fresh and comfortable environment for various places.
Product Information
Nominal Size
WxHxD (in.)
Actual Size
WxHxD (mm)
Media Area (m²)
Standard Capacity
Media Area (m²)
High Capacity
Filter Rating
Air Flow
Standard Capacity
CFM         CMH
Air Flow
High Capacity
CFM         CMH
Initial Resistance
Standard Capacity
In W.G.    Pa
Initial Resistance
High Capacity
In W.G.    Pa
Rec. Final P.D.
12×24×12305x610x2905.857.69M610001699125021240.401000.58145≤ 350
(1.5 In W.G.)

◆ Face velocity:
150D = > Standard velocity: 1.2 m/s High velocity: 1.5 m/s
290D = > Standard velocity: 2.5 m/s High velocity: 3.2 m/s
◆ Other sizes available on request.