Purpose: Main filter for comfort ventilation and air conditioning systems; Purification air conditioning system pre filter, etc

Outer frame: aluminum alloy, galvanized sheet

Filter material: Synthetic fiber and microfiber materials, using a step-by-step encryption technology system, complying with the European DIN53438-FI flame retardant standard

Inner frame: galvanized strip split type

Efficiency: G4, M5, M6, F7, F8