
The strong, silent type
The Blueair 503 is an excellent choice for people living with allergies, asthma, or other respiratory conditions, or for anyone who wants cleaner, more breathable air. Designed for large rooms up 580 ft2, the Blueair 503 effectively purifies indoor air. This powerful air purifier offers quiet operation by gently diffusing air through an area six times greater than the average air cleaner, thanks to its SurroundAir™ system. This provides an exceptional air exchange rate and better indoor air quality. Plus you can easily move the Blueair 503 around your living space thanks to convenient caster wheels.


The Blueair 503 with Particle filters is the ideal choice for allergy sufferers and other health-conscious individuals that need high-efficiency particle removal. The unit contains three filters with a unique gradient and progressive structure made of polypropylene, a plastic material that is naturally anti-bacterial, fiber shredding resistant and when combusted the filters convert to harmless water and carbon dioxide. These filters effectively remove every type of particulate air pollutants, including allergens, pollen, mold spores, dust, pet dander, bacteria, and viruses.
The Blueair 503 SmokeStop™ Unit is the ideal choice for allergy sufferers and other health-conscious individuals that need high-efficiency particle removal plus gas and odor control. The unit contains 3 Smokestop™ progressive carbon filters each with a honeycomb-type structure that improves airflow and has hundreds of odor and gas absorbing carbon pellets. Each filter contains 2.0 lbs of coconut shell activated carbon impregnated with a 70/30 blend of Potassium Hydroxide (KOH) and Potassium Iodide (KI). The carbon eliminates volatile organic compounds (VOC), which are responsible for odors.
The SmokeStop™ filter is recommended for use in rooms where heavy gaseous pollutants such as cigarette and cigar smoke or other VOC's are present.

• Ideal for large rooms(580ft2 or 54m2)
• 99.97% filtration efficiency
• Energy Star® qualified
• Available in white/dark grey