... primarily of glass microfibers, is produced with a wet laid process which is similar to that used in the production of paper ... Cleaning Rooms, Food Processing, Hospital Operating Rooms, Genetic Research, Nuclear Containment, Pharmaceutical Processing, Chemical Processing, Compressor Inlet ... F780700.3433+-512001200HZO-F660700.3320+-5120012001. Efficiency and Air Resistance were tested by TSI8130, ...