Allegro A-750 Ambient Air Pump 9821

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This Allegro Ambient Air Pump A750 features a 3/4 HP electric motor and the capacity to drive 2 masks or 1 hood. Simple to use, this compressor is intended to move clean air though a hose to your breathing zone. Place the unit outside the work area (clean air), attach the hose (50 ft. or 100 ft.), and plug in the quick-connect for your mask or hood. That's it, you're ready to work!

The rotary vane pump has no internal lubrication, eliminating the need for expensive carbon monoxide monitors. Very low maintenance is required to own this product. So long as the area where the pump is used remains clean, even the filters should last a while!

Portable & lightweight air source for one hood user, or up to two full or half face respirator users. Solid performance in applications such as spray painting, spray foam, bathtub refinishing and applying epoxy coatings.

The motor and pump assembly features a rigid metal base and housing that has been powder coated blue. The plumbing fittings are a combination of brass and galvanized with a quick-connect OBAC fitting. Air delivery is adjusted via a brass pressure relief valve. The steel handle allows easy transport and offers some protection for the pressure gauge in case the unit tips over.

Pump Specifications:
  • Type: Oil-less, rotary vane
  • Vanes: Carbon construction (4 ea/replaceable) (2.000 in. X 1.500 in. X 0.219 in.)
  • Inlet Filter: 50 Micron felt material with metal grid inlet filter housing
  • Exhaust Filter: 0.3 Micron HEPA
  • Pressure Gage: 1-1/2 in. face, steel housing (0-15 psi.)
  • Pressure: 2-12 psi. working (15 psi. max)
  • Performance: 0-10 CFM @ 60 Hz (adjusted via pressure relief valve)
  • Airline length: 100 feet maximum from pump to respirator (sold separately)
  • Noise level: At pump: 90 dB (6 feet: 74 dB, 10 feet: 72 dB)
Motor Specifications:
  • HP: 3/4 HP
  • Certifications: UL Recognized, CSA Certified
  • Volts: 115V AC, Single Phase
  • RPM: 1725
  • RPM at 60Hz
  • Current Draw: 115V 12A at 60 Hz
  • Cord: 10 ft. AWG 16/3 SJ00W 300V with integrated ON/OFF switch
  • Plug: Integrated NEMA 5-15
  • Dimensions: 16L x 9W x 13H inches
Part Number:
More Information
SKU ALL02-9821
Price $928.58
Product Weight (lbs.) 53.00
Weight 60.0000
Size No
Filter No
Color Blue
Protection From Most Dusts, Lead and Asbestos, Lead, Asbestos, Organic Vapors, Mold, Chlorine (Bleach), Particulate Aerosols Free of Oil, Acid Gas Irritants, Ammonia, Mercury, Welding
Brand Allegro
MPN 9821
UPC 741851982106
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  1. Peter

    2015-10-12 19:48:50

    Is the ALLEGRO A-750 AMBIENT AIR PUMP 9821 suitable to be used for an air supply for paint spraying - supplying 1 full face mask?

    Do you ship to Australia?

    1 answer
    1. Ben

      2015-10-12 19:48:50

      Yes. Spray painting is a fantastic application for this item. Yes, we ship to Australia.

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