The Honeywell Ambient Air Pump is ideal for continuous flow applications for up to three workers. The lightweight and portable air pump offers the flexibility for use at multiple sites. The pump requires no special wiring or adapters and can plug into any standard electrical outlet. Ambient Air Pump Kits are sold separately. ADDITIONAL SPECIFICATIONS: 1-1/2 horse power Ambient air pump for 1 to 3 workers. For use with either North or Sperian (Honeywell) Supplied Respirators. Includes North PA131 Double Bibbed Hood, CA127 Breathing Tube, Hansen 88800H Coupler, 998050 50 ft. Hose.