Product Name: 3 Filters Purifying Box for Ventilation Model NO.: GL Type: Panel Filter Filtration Grade: HEPA Filter Efficiency: F9 Medium Material: Cotton Filter Number: 3 Clapboard: with Clapboard Transport Package: Carton Specification: foam protector Origin: China Product Description Good Partner for HVAC system.--PM2.5 Purifying Inline Duct Filter Box for Commercial and Home HVAC♦ Simple,Integrates fresh air ventilation with purifying.♦3 separated filter.♦PM2.5 Purifying♦ Stable long service life♦ Unique Design.High-Efficient 3 Layers FilterPerformanceTable--H11 HEPAFilter Box for Commercial and Home Air Suction and Air InletSeriesModel No.Applicable Air Volume(m3/h)Pressure Loss(Pa)Duct Size(mm)DemesionL*W*H(mm)Packing Qty(pc/case)Net Weight(kg/pc)Purifying BoxGL100-X100-20040100385*340*26017.3GL120-X200-40045150385*340*26017.6GL150-X400-60050200385*340*26018Overall & Installation Dimension--PM2.5 Purifying Inline Duct Filter Box for Commercial and Home HVACSimple Schematic Diagram of Fresh Air SystemReassuring ServiceWe control every step of your order to make sure the goods arrive your side with good situation on time without any worry.Strict testing for new products, OEM/ODM products, or customized products.Our own molding factory (90T-1600T) provide us best cost, delivery time, quality for our Air Purifier, Anion generator, UV sterilizer, Fresh Air System, Exhaust Fan, Bathroom Fan, Heat Recovery Ventilator, Inline Duct Fan and so on.Our own motor production line (two different department separated for different usage of motor.) provide us bestcost, delivery time, quality for our own products.Strictly required 5S workshop, regular staff training, in-process and final inspection, make sure every tiny mistake is stopped before delivery.Specialized staff gives you an eye on your products. From our detailed loading report, you will know howare the products loaded. What you see will be what you received.