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Allegro Half Mask Supplied Air Respirator System-One Man


Special Price $699.99

Quick Overview

Half Mask Low Pressure System


Portable, lightweight source for one worker.

Complete One Worker Half Mask System that offers portable, lightweight air sources and includes one comfortable half mask supplied air respirator, 1/4 Ambient hp pump & 50' breathing air hose. This Ambient air system does not require an air compressor.

Pump must be placed in a clean air environment. Supplied air respirator system ambient air pumps do not require temperature alarms, CO monitors or airline filters, offering a cost-effective alternative when compressed air is not available. Additional air supplied hose can be purchased, total length of line not to exceed 100'.


  • Durable silicone rubber
  • Hypoallergenic and chemical/Ozone resistant
  • Large diameter exhalation valve
  • Rubber double strap suspension
  • Down tube comes with a 90 degree elbow that allows it to be directed over the shoulder. OBAC quick-connect plug with wide diameter and minimal air restriction


  • Type: Oil-less, rotary vane
  • Vanes: Carbon construction
  • Inlet Filter: 40.0 Micron bronze/steel --- 50 Micron felt material with metal grid inlet filter housing
  • Exhaust Filter: 0.3 Micron HEPA
  • Pressure Gauge: 1 1/2" (3.8 cm) face, steel housing (0-15 psi) (0-1.03 bar)
  • Working Pressure: 2-12 psi (0.14-0.83 bar) (15 psi max) (1.03 bar max)
  • Performance: 0-5 CFM (0-8.5 m3/hr) (1/4 HP) --- 0-10 CFM (0-16.99 m3/hr) (3/4 HP) --- 0-20 CFM (0-33.98 m3/hr) (1½ HP)
  • MOTOR:

    • Type: 1/4 HP, 3/4 HP, or 1 1/2 HP UL Listed
    • Volts: 115 V / 230 V AC Single Ø
    • Power Required: 5.5 A (1/4 HP ), 8.3 A (3/4 HP), 16 A (1 1/2 HP)


    • Polyvinyl chloride with reinforced braided polyester yarn
    • -20°F to 150°F (-28.8°C to 65.5°C)
    • Maximum pressure 185 psi @ 70°F (12.76 bar @ 21.1°C)

    Also Available: THREE WORKER HALF MASK SYSTEM WITH 1 1/2 HP PUMP & 50' HOSE (ALL9205-03) & TWO WORKER HALF MASK SYSTEM WITH 3/4 HP PUMP & 50' HOSE (ALL9205-02). Materials and subject may vary (dependent on kit ordered).

    This system does not require a compressor.

    Additional Information

    SKU ALL9205-01
    Prop 65 N/A
    Weight 39.0000
    Dimension No
    MPN 9205-01
    UOM EA
    UPC 741851920504
    Manufacturer Allegro
    Material No

    Customer Reviews

    Review by Santiago
    Used this machine continuous for about 3 hours, did not overheat, the air kept coming in cool, the half mask has a great fit and is made of better materials than other respirators I have. The machine runs quiet enough not to make you go crazy. The down side is that is quite heavy and lack a handle to carry, I made a strap for mine it works fine. I would give it a 5 but i don't know how long it will work in good order (new) so a 4 is good for now. (Posted on 12/23/2008)

    Additional Reviews

    Customer Reviews