... Activated carbon 3. Breathable 4. Eco-friendly PET activated carbon nonwoven fiber filter for air conditionerOur product is activated ... .Widely used in automotive air conditioner,air mask,air purification,etc.In the air,gas,dust harmful indulges ... , mothproof,breathable, tear-resistant,anti-full,water-soluable,shrink resistant,wear resistanceUsageAutomotive air conditioner,air mask,air purification,etc ...