High Efficiency 20x25x4 16x25x1 Merv8 G4 Cardboard Frame Pleated Pre Air Filter for Commercial Residential HVAC Ventilation

Dongguan Walson Environmental Purifying Technology Co., Ltd. is a professional manufacturer engaged in the R&D, production and sales of air filter screens. Founded in January 2013, the company has a monthly production capacity of 150,000 to 200,000 filter screens. The company's main products include three types of filter screens: first, solid particle filter screens with an efficiency rating ranging from G1 to H14; second, gaseous pollutant filter screens, which can remove odors such as formaldehyde, toluene, ammonia, sulfides, TVOC and ozone; third, antibacterial and antiviral filter screens. These products are widely applied in civil air purifiers, fresh air systems, central air conditioning return air outlets, automotive air conditioning systems and special industrial ventilation systems. The company has established a comprehensive quality management process, with strict control over R&D, sample making, procurement, production, delivery and other procedures to ensure the qualified delivery of products. In terms of facilities, the company is equipped with a dust-free production workshop, advanced production equipment, a wind tunnel test system, a filter material testing bench, a 30-cubic-meter solid and gaseous test chamber, a 3-cubic-meter aging test chamber, an 8-cubic-meter detection chamber, a 1-cubic-meter gas test chamber, etc. The company has a professional R&D team, which can design and customize various types of filters according to customer requirements or sample specifications. Business negotiations are warmly welcome.