CFE

Filters, being parts of machines, for use in the purification of air and gases in industrial, chemical and mineral processing; filter material and cloths for use in machines for separation of dust and contaminants from air and gases[; ceramic filter candles for use in machines for dust filtration]

Filters for[ household and ]industrial air filter machines; filters for use in air conditioning apparatus

Textile filter materials, namely, cloths, screens and sieves; fabrics for use in the manufacture of filter materials and filter media