The Blueair 650E does an excellent job clearing dirt, pollen and cigarette smoke from the air and meets U.S. Food and Drug Administration standards for ozone emissions. The Blueair 650E's automated sensors adjust the unit's cleaning efforts according to the amount of pollutants in the air, making this an easy-to-use air purifier. The Blueair 650E is a powerful machine, experts say, removing particles down to 0.1 micron from the air.
Excellent air purification. This air purifier doesn't use a true HEPA filter, but reviews say its proprietary technology (a combination of a HEPA-like filter with ionization) appears to work just as well: It does an outstanding job clearing the air of dust, pollen and cigarette smoke in one reputable test. The Blueair 650E lacks the prefilter that top-rated purifiers in this price range use to extend the life of the expensive main filter. It does offer an optional carbon SmokeStop filter (Est. $150) to capture smoke and odors. The Blueair 650E meets U.S. Food and Drug Administration standards for ozone emissions (less than 50 parts per billion).
A few design flaws, but otherwise simple to use. The Blueair 650E has sensors to read the level of pollution in the air and adjust its cleaning accordingly. Editors of AchooAllergy.com say the Blueair 650E's electronic controls make it easier to use than less expensive Blueair models. Owners posting feedback to Amazon.com generally say this unit is simple to operate. One owner, however, says the controls are inconveniently located too close to the floor. Another says the filter indicator merely counts days, not the actual status of the filter.
A quiet contender. The Blueair 650E delivers a prodigious amount of clean air per minute on its high speed, with the trade-off of added noise. It's extremely quiet on low speed, earning very good scores from one professional testing organization for its quiet operation on its low setting. Still, it earns a good rating in the same review for noise at the high setting. Owners posting to Amazon.com say the high cost of this model is worth it for the value-added benefits, such as quiet operation.
Filter replacement is the biggest expense. Replacement filters are relatively expensive (Est. $80) and should be changed every six months, whereas true HEPA filters usually last a year or more. Still, editors at AchooAllergy.com say "the 650E is energy efficient and costs very little to run continuously." One owner posting to Amazon.com says Blueair's customer service is responsive and accommodating, saying they immediately sent her, free of charge, the SmokeStop filters that weren't included in her purchase as stated.
Experts at ConsumerReports.org place the Blueair 650E and 31 other air purifiers in a sealed room with measured amounts of cigarette smoke and dust. They rate the units according to how well they clear the air and how noisy they are, also considering price, filter cost and energy use.
Review: Air Purifiers, Editors of ConsumerReports.org, April 2012
Ed Sherbenou names the Blueair 650E one of his top 10 air purifiers, noting its automatic sensors that adjust the unit to the level of pollutants in the air. However, he notes that this model uses its own design without a HEPA filter, and questions the filter's efficiency over the full estimated six-month lifespan.
Review: BlueAir 650E Air Purifier Review, Ed Sherbenou, Not dated
Blueair air purifiers are very quiet on their lowest speed, making them AllergyBuyersClub.com's "ideal choice for a large bedroom," where quiet really counts. The biggest drawbacks are their expensive replacement filters and lack of a prefilter to keep them clean, editors say.
Review: Blueair 603 and 650E Air Purifiers, Editors of AllergyBuyersClub.com, Not dated
4. Association of Home Appliance Manufacturers
The Blueair 650E is one of just four models offering good clean air delivery rates (CADRs) along with acceptable ozone levels as certified by the Association of Home Appliance Manufacturers (AHAM). However, not all manufacturers opt to have their air purifiers rated by this organization.
Review: 2013 Directory of Certified Portable Electric Room Air Cleaners, Editors of the Association of Home Appliance Manufacturers, April 2013
The Blueair 650E doesn't make AchooAllergy.com's list of the top five air purifiers, but it does receive a detailed review by editors. Editors say this model offers better CADRs for dust, pollen and smoke than other Blueair models and praise its easy-to-use electronic controls.
Review: Blueair 650E HEPASilent Air Purifier, Editors of AchooAllergy.com, Not dated
Less than 10 owners have posted feedback on the Blueair 650E, which maintains an average rating of 4 out of 5 stars. Most owners say this unit is efficient, effective and easy to use. One owner, however, says the ozone emitted caused her cat's death.
Review: Blueair 650E Go Smokestop Air Purifier, Contributors to Amazon.com, As of July 2013