(Last Updated On: March 24, 2023)

The Blueair 503 HEPA air purifier is the original Blueair model that helped the brand break through to allergy and asthma sufferers. The Blueair 503 air purifier is attractive enough to fit in any home or office decor, and because it’s on casters can be easily moved from one room to the next. Blueair air purifiers quietly clean large volumes of air by employing internal electrostatic ionizers, making the system both a HEPA and Electrostatic air purifier. The 503 unit cleans the air five times per hour.

The Blueair 503 air purifier is appropriate for use in mid-sized rooms like living rooms, dining rooms, larger kitchens, and master bed room suites. The 503 air purifier is whisper quiet on low and produces a quality white noise on the higher speeds. If you have a chemical or odor problem like tobacco or wood smoke, the Smokestop filter option may be the right choice for you. The Smokestop filters are made with more activated carbon to address odor problems and is also helpful for those who suffer from multiple chemical sensitivity (MCS).

Blueair 503 Air Purifier Review

We purchased three 503 air purifiers and use them in our master bedroom, family room and master bathroom and have been running them 24/7 for about a year. Since we began using the 503s, we have noticed a significant reduction in pet odors (we have many family pets) and family sniffles! We are very happy with this product’s performance and trouble free operation.

Byron G.

Important Features:

  • Unit includes HEPA Filter
  • Covers up to 580 square feet, removing 99.97% of particles 0.3 microns and greater
  • Smokestop carbon filter option
  • Includes Blueair’s 5 Year Limited Warranty
  • Free Shipping