There are two common categories for Air Filter Units in UL Certification. Please see the followings for reference:
- UL Standard: UL 586
- Use: This category covers high-efficiency particulate air-filter units of the throw-away type intended for removal of very fine particulate from the air of industrial and laboratory exhaust and ventilating systems.
- UL Standard: UL 900
- Use: This category covers air-filter units of both washable and throw-away types intended for the removal of dust and other airborne particles from air circulated mechanically in equipment and systems installed in accordance with ANSI/NFPA 90A, ANSI/NFPA 90B, the "International Mechanical Code", "International Fire Code" and "Uniform Mechanical Code".
- UL 586 - Standard for Safety High-Efficiency, Particulate, Air Filter Units
- UL 900 - Standard for Safety Air Filter Units
GCS Safety Team