Air filter foam is classified into 8PPI~100PPI Polyethylene (Ester, Ether) by size of cell. It is used for every home articles.

8 ~ 34PPI :

Air conditioner, Ceramic Filter, Dry stand for sea weed farm, Aircraft fuel tank, vacuum cleaner filter.

40 ~ 50PPI :

Small engine, Evaporative cooler, Automobile brightener (Wax), Ear Phone, Stereo Speaker etc.

55 ~ 85PPI :

Medical equipment, Paint Spray, Booth, Spongy-gourd, Bathing towel, Filter of oil refinery, Power puff, Fuel tank etc.

95 ~ 100PPI :

Motorcycle air filter, Power puff, Filter of oil refinery, Fuel tank etc.