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Blueair 503 Air Purifier

Blue Air 503 Air Purifier
  • AHAM Certified
  • Convenient caster wheels
  • For spaces up to 580 feet in size
  • Captures 99.97% of the tiniest 0.1 micron particles
Save $164.75 (20.00%) through 1/26/2020
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Compare Blueair Air Purifiers | Blueair 503 Product Manual

This item is no longer available. For comparable model, please refer to the Blueair 605 HEPASilent Air Purifier

If you're looking for an air purifier that can help to alleviate the symptoms of asthma, allergies, or other respiratory conditions, look no further. The Blueair 503 air purifier is designed to cleanse the air in rooms up to 580 square feet in size. It uses two-stage HEPASilent filtration technology to capture 99.97% of pollen, dust, mold spores, pet dander, and other airborne particles down to 0.1 micron in size.

The 503's Surround Air vent system delivers exceptional air exchange (up to 500 cubic feet per minute) without annoying drafts. Among its other notable features are caster wheels for easy transportation, disposable filters, and durable, galvanized steel housing.

About Clean Air Delivery Rate (CADR)
Clean Air Delivery Rate is measured by three numbers: one for tobacco smoke, one for dust, and another for pollen. These numbers indicate the rate (in cubic feet per minute) at which these particles will be filtered out of the air in your space. The higher the machine's CADR numbers are, the more effective it is. To find out which one works for you, consider the size of the room where you're planning to use an air purifier. You will want a model with a CADR of at least two-thirds the size of that space.'s price for the Blueair 503 air purifier includes free shipping! For more information about this or any of the other Blueair air purifiers we carry, please call (866) 972-8227.



Product Specs






 No Ozone Emissions

Disposable/Washable Filter


Clean Air Deliverly Rate:










Average Filter Life:

 6 Months

Particulate Size:

 .01 Micron


 26"H x 20"W x 13" D


 35 lbs.

VOC Filter:


Room Size:

 580 sq. ft.


 Galvanized steel

Noise Level:

 35-71 dba

Filter Change Indicator:


Power Consumption:

 35-120 Watts

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  • Caster wheels for easy mobility
  • HEPASilent filtration technology
  • Disposable filters
  • Galvanized steel housing
  • For rooms up to 580 square feet in size
  • Low noise output
  • Low energy consumption
  • No ozone emissions


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