www.ishn.com/articles/83425-allegro-industries-respirator-systems
Allegro Industries: Respirator systems
September 29, 2000
Each respirator system from Allegro Industries is easily ordered with one part number and comes complete with a MSHA/NIOSH-approved, continuous flow full-mask, half-mask or hood-style supplied air respirator, an ambient air pump, and 50 or 100 feet of breathing air hose. The systems are ideal for non-IDLH environments. Allegro Industries, Garden Grove, CA. Booth 1443.