BlueAir 603 Air Purifier Review

Blueair 603 purifier review

Check Current Price on

The Blueair 603 Air Purifier is a whole-home air purification system, intended for large rooms and open-concept floor plans. Like all BlueAir air purifiers, it features BlueAir’s patented HEPASilent technology in order to keep the noise in your home to a minimum while still offering you the most efficient clean possible. The BlueAir 603 boasts the world’s highest Clean Air Delivery Rate at about 490 Cubic Feet per Minute (CFM). The CADR also measures that the BlueAir 603 can operate within a 698 square foot room at a rate of five air changes every hour.

This BlueAir 603 Air Purifier Review will help you make an informed decision.

Check Current Price on Amazon


BlueAir is a Swedish company that prides itself on providing consumers with the best indoor air quality possible, hile keeping its products small enough to be portable and silent enough for any room in the house. Their corporate headquarters may be in Sweden, but their products are manufactured in the USA.



blueair hepasilent technologyBlueAir 603 is equipped with BlueAir’s HEPASilent technology, which means that it can clean up to 99.97% of contaminants in the air while keeping the noise below 70 decibels (for reference, the average sound from cars on the street is around 70 decibels). HEPASilent technology capitalizes on regular HEPA technology by using a small ionizer to attract pollutants and trap them more efficiently in the filter. With this ionizer in place, the BlueAir 603 is able to trap particles as small as 0.1 microns in size, as opposed to the 0.3 microns that a True HEPA filter can capture.


With its SurroundAir system, the BlueAir 603 is able to reduce draft and take in air through an area six times greater than the average air purifier. What this means is that, rather than blow filtered air through a single vent, BlueAir 603 takes in air through the sides and bottom and diffuses cleaned air through the sides and top.

Electronic Filter Timer

All BlueAir air purifiers come equipped with an electronic filter timer to remind you when you need to change your filters. For those enrolled in BlueAir’s Filter Subscription Program, the filter timer provides the customer peace of mind by letting them know when they’ll be receiving their new filter.

Energy Efficiency

BlueAir makes appliances that will work well without sending your electric bill through the roof, and the BlueAir 603 is no exception. On high, running day and night, this unit only uses 95 watts.

Clean Air Delivery Rate

AHAM VerifiedThe BlueAir 603 has the best Clean Air Delivery Rate (CADR) on the market, capable of filtering up to 450 Cubic Feet per Minute (CFM/CPM) at a rate of 5 air changes per hour. The Clean Air Delivery Rate is measured by the Association of Home Appliance Manufacturers, which is an independent association that provides ratings for air purifiers. The higher the number, the better the filter.


The BlueAir 603 comes with a long-life guarantee and a ten year limited warranty. In order to make sure you get your warranty, you must fill out and return your registration information, and you must use original BlueAir filters to replace your used filters once every six months.


BlueAir 603 Replacement Filters

Check Current Filter Price on Amazon

We were surprised to see that BlueAir replacement filters are very affordable. This great news in a premium machine. You can read more about the various filters from BlueAir in this article that covers their entire product line.

BlueAir Smokestop

We highly recommend adding the Smokestop filter to your BlueAir purifier. It will definitely help combat odor in your home.

Check Current Price on Amazon

Suitable Applications

This unit has an Area Coverage of almost 700 square feet, making it perfect to use in a large living room or in an open first floor, where it can filter the air in multiple rooms at once. Because of its large Area Coverage, the BlueAir 603 is also suitable for apartment living, where just one appliance could clean the air in your whole home.

While the BlueAir 603 is the best available to clean the air in your home of dust, allergens, and common air pollutants, with just a small amount of activated carbon added to the rear of the HEPASilent filters, it will not do a very good job of cleaning your serious household odors, smoke, or harsh chemicals. If you’re looking for a serious odor-reducing air purifier, this may not be the best for you.

BlueAir 603 Air Purifier Review

The BlueAir 603 is one of the best air purifiers on the market today. It has been rated by the Association of Home Appliance Manufacturers, an independent certifying body, the world’s best CADR. Its HEPASilent technology beats True HEPA in minimum particulate size. True HEPA captures particles as small as 0.3 microns, whereas HEPASilent captures contaminants as small as 0.1 microns. With an Area Coverage of 698 square feet, this appliance is an efficient whole-home unit.

blueair 603 air purifier review

Highlights of the BlueAir 603

  • Area Coverage of 698 sq. ft.
  • HEPASilent captures 99.97% of particles in the air
  • World’s best CADR rating of >450 CPM
  • Air change rate of 5 times per hour
  • Electronic filter timer
  • Noise level of < 70 dB


  • No independent activated carbon filter
  • No automatic feature, only manual settings
  • Expensive replacement filters
  • Not recommended for multi-pet households
Click here to see reviews and prices for the BlueAir 603 air purifier on

Final Thoughts

The BlueAir 603 Air Purifier is a wonderful machine for cleaning large rooms of allergens and pollutants. It is best suited for smoke-free homes and home with one or no pet. Still, if air freshening is not your major concern, then this unit is the best appliance available.

Review Date
Reviewed Item
BlueAir 603 Purifier
Author Rating
Share this Story