Features: 1) Purpose: dust filter in air conditioning ventilation program 2) Utilize ultrasonic thermo-melt techniques3) Have firm structure but depressed cracking4) Adopt high-quality electrostatic nonwoven with pockets5) Diffluent equally, and keep pockety, reduce consumption and make full use of filter materials6) Without the danger of old fiber glass rupturing and the discomfort to human, as well as the condition of breeding microbe7) Long working life8) Max. temperature: 80°C9) Type: 35%, 45%, 65%, 85%, 95%Packing:Standard export packingStandard: A