From H11 to H14 filtration efficiency, high efficiency, but low pressure drop. Composite with pp spun bond, melt blown, glass fiber, PET spun bond, for dust, pollen, mold spores, dust mites, and other allergens. Generally, it is made to panel filter, cart
Outdoor seat cushion fabric is made of Polyester, it is water repellent treated before delivery and also can be with BS5852 treatment(fire proof treatment).