China Suppliers KWS-009 Primary Efficiency Pleated Sheet Air Filter - Factory Direct Sales
Primary Effect Sheet Filter is widely used in the field of air purification. Its structure is cleverly designed, consisting of several Primary Effect Sheet Filter material arranged in parallel, in the shape of a shutter, which gives it a large windward area and can effectively improve the air handling capacity.
The filter material is mostly non-woven or glass fibre, which is low-cost and easy to replace, and can efficiently intercept large particles of pollutants above 5 microns, such as dust, hair and pollen. In the ventilation and air-conditioning system, it is the first line of defence to prevent large particles from entering the air-conditioning unit, reducing wear and tear of the equipment, prolonging its service life and reducing energy consumption. In the electronic plant, it can pre-filter most of the dust, reduce the burden for the subsequent fine filtration, and guarantee the high cleanliness of the production environment of electronic products. In schools, shopping malls and other densely populated places, the sheet primary filter can continuously purify the fresh air, reduce pollutants and microorganisms, and create a healthy and comfortable space.
Inexpensive, light weight, good versatility, reduce operating costs.
The outer frame is made of aluminium or galvanised frame, and the filter material is made of high-quality polyester synthetic fibre with diamond-shaped mesh folding.
Compact structure, commonly used in the first stage filtration of ventilation system.
It is also suitable for air-conditioning and ventilation systems that only need one stage of filtration.
| Name | Size | Rated Airflow | Efficiency | Initial Resistance | Suggested Ultimate Resistance |
|---|---|---|---|---|---|
| KWS-009 | 595*595*21 mm | 3200 m³/h | G4 (35%) | ≤ 75 Pa | ≤ 150 Pa |
| KWS-010 | 295*595*21 mm | 1200 m³/h | G4 (35%) | ≤ 75 Pa | ≤ 150 Pa |
It serves as the first line of defence in HVAC and air purification systems, efficiently intercepting large pollutant particles above 5 microns such as dust, hair, and pollen to reduce equipment wear and lower energy consumption.
The outer frame is made of aluminium or galvanised frame, while the filter media consists of non-woven fabric, glass fibre, or high-quality polyester synthetic fibre with diamond-shaped mesh folding.
The filters comply with international filtration standards including G3 (EN779) / MERV6 (ASHRAE52.2) and G4 (EN779) / MERV8 (ASHRAE52.2).
Model KWS-009 delivers a rated airflow of 3200 m³/h, and KWS-010 delivers 1200 m³/h. Both models have an initial resistance of ≤ 75 Pa and a recommended ultimate resistance of ≤ 150 Pa.
It is ideal for pre-filtration in HVAC systems, large air compressors, clean room return air systems, electronic manufacturing plants, schools, shopping malls, and general industrial plant ventilation systems.
The parallel arrangement in a shutter shape maximizes the effective windward surface area, allowing higher airflow throughput while maintaining low operating resistance and versatility.





