This NORTH 7902 Mouth Bit Escape Respirator for Acid Gases is a disposable air purifying respirator designed for emergency escape from acid gas contaminated atmospheres. This model is approved for protection during immediate escape from atmospheres containing: Chlorine, Hydrogen Chloride, Hydrogen Fluoride, Sulfur Dioxide, Hydrogen Sulfide and Chlorine Dioxide. NORTH 7904 Mouth Bit Escape Respirators for Ammonia contaminated atmospheres are also available and sold separately. 7902 Respirators sold each. 10 Respirators per case.
See TnA Safety, Webster, NY on MacRae's Blue Book