AllegroŽ 9901 Full Face Constant Flow Supplied Air Respirator, Low Pressure - Sold Individually

Item #9901

This comfortable full mask offers low pressure continuous flow protection with a unique over the shoulder hose design and an adjustable belt holds the hose out of the way. It’s durable and easy to use and clean. NIOSH approved.


  • High impact polycarbonate (meets ANSI Z87.1)
  • Wide field of vision with replaceable lens
  • Distortion-free
  • Anti-fog and anti-scratch coatings
  • Available lens peel-offs (PN 9901-25) 


  • Non-slip durable rubber five-point harness
  • Mesh hair net minimizes pulling of hair
  • Fits under hard hats
  • Unique adjustable buckle system to lock in place 


  • Hypoallergenic and chemical/ozone resistant
  • Durable silicone rubber maintains shape while in storage
  • Comfortable even in extreme heat and cold environments
  • Double sealing flange and deep chin pocket for better face to mask seal 

Exhalation Valve:

  • Large diameter contoured exhalation valve design, for minimal breathing resistance
  • Easily accessible for fast replacement and cleaning
  • Removable cover protects the exhalation valve form dirt, paint spray and from freezing 

Down Tube & Belt Assembly:

  • 90° elbow allows it to be directed over the shoulder and out of the way
  • Corrugated flexible and lightweight material for greater comfort and less fatigue
  • OBAC quick-connect plug with wide diameter and minimal air restriction
  • Low profile nylon adjustable waist belt
  • Plastic clip to restrain airline hose from pulling on the face piece

NIOSH Approval:

  • Approval No. TC-19C-353 (Use only with Allegro approved airline hose)


Our Full Mask continuous flow supplied air respirator is made of silicone rubber for durability and will hold its shape even in extreme heat and cold. The double sealing flange provides an improved face-to-mask seal and a deep chin pocket provides a better, more comfortable fit. The replaceable polycarbonate lens offers a wider, distortion-free viewing area with an anti-fog, anti-scratch coating. A removable hairnet means greater comfort and fits easily under a hard hat. The unique over the shoulder hose design clips at the collar and an adjustable belt holds the air hose out of the way of work. Comes with OBAC quick connects. NIOSH approval TC-19C-353.

If this isn't what you're looking for, please check out the rest of our supplied air respirator category.
  • Manufacturer:

    Allegro Industries