... each fiber 4) synthetic Ceiling Filter Series (roof filter, auto spray booth filter, sticky filter, air filter)Purpose: widely applied ... and metallurgy.Introduction: WS series ceiling filter have high filtering effect, long service life. Raw materials are manufactured through several ... :F-5/EU-5 DIN24185Fireproof Level:F-1 DIN53438 Spray Booth Ceiling Filter, roof filter, spray paint booth filter