Model # 403

Internet #202583063

Blueair HEPASilent Air Purifier

Discontinued Blueair

HEPASilent Air Purifier

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Frequently Bought Together

Product Overview

The Blueair 403 continues to deliver outstanding performance that has withstood the test of time. Using patented HEPASilent technology, it captures 99.97% of the tiniest particles, including allergy-provoking pollen grains, dust mites, mold spores and pet dander particles. The Blueair 403 is designed for maximum performance in mid-size rooms. Our Swedish design is not only attractive but built to last. We are known for our durable construction that is made of galvanized steel and is powder coated for durability and environmental protection that produces no chemical off gassing. The air purifier housing is easy to clean, and won't pick up grime and oily stains the way plastic may. Air is drawn into the unit via an ultra-quiet fan. Airborne particles pass through an ion chamber and are charged to ensure that they adhere effortlessly to Blueair’s progressive three-stage filter. Clean air that is free of impurities is then recalculated into the room.

  • 365 sq. ft. coverage-For effective purifying of large rooms on 5 air exchanges per hour
  • Removes impurities from the air-Including pollen, dust mites, mold spores and pet dander
  • HEPASilent technology-Traps particles with mechanical and electrostatic filtration, creating an open airflow system that remains quiet while cleaning
  • 3-stage progressive filter-Our unique filter design resists clogging and allows filtration at peak performance with high efficiency and longer lasting airflow
  • HEPASilent technology traps particles with mechanical and electrostatic filters, creating an open airflow system that remains near silent while cleaning
  • Filter replacement indicator-Alerts you when the filter needs to be replaced every 6 months
  • 3-stage progressive filter - It’s like having three filters in one capturing large particles at the first layer and small particles, including bacteria, at the second and third layers; Exhaust filter design resists clogging for continuous filtration at peak performance levels
  • Galvanized steel housing-For a strong and durable design
  • Winner of multiple design awards ensuring the Blueair 203 looks great with your decor
  • AHAM Verified CADR-CADR of 240 cu. ft. per minute of 100% particle free air
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Maximum coverage area (sq. ft.)
Product Depth (in.)
Product Height (in.)
Product Width (in.)


Air Purifier Type
Air Treatment Product Type
Air Purifier
Automatic shutoff
CADR (Clean Air Delivery Rate)
Color Family
Control Type
Effectiveness (%)
Filter/bulb monitor
Filtered or Filterless
HEPA Filter
Number of Fan Speeds
4 or More
Number of cleaning stages
Primary Filter Type
HEPA - Type
Product Weight (lb.)
Remote Control
Removes bacteria
Removes dust
Removes mold
Removes odors
Removes particulates
Removes pollen
Removes viruses
UVC lamp
Voltage (volts)
Wall Mountable

Warranty / Certifications

Certifications and Listings
AHAM Certified,CARB Compliant,ETL Listed
Manufacturer Warranty
5 year Limited

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Customer Questions & Answers

Does this unit come with the filter(s)?

Asked by: akam
Yes, this unit comes with the filters.
Answered by: CommunityAnswer
Date published: 2016-05-22

Does it xpture microtoxins ?

Asked by: MeShelle
Thank you for your question. Our purifiers are designed for maximum removal of all airborne particles. The certified efficiency is 99.97% for particles down to 0.1 micron such as dust pollen, bacteria, virus, pet dander, mold spores and other airborne particles.
Answered by: Blueair Support Team
Date published: 2016-08-31

How does this compare to the AerCure One air purifier?

I have extreme allergies to dust mites & VOC's. Our whole house HRV works great, but still need something in the bedroom/ house. Trying to decide b/w Blueair, AeroCure or and Air scrubber. (there's no mold, just extreme allergies).
Asked by: MNL
Thank you for your interest in Blueair. Blueair’s HEPASilent filtration process captures 99.97% of airborne particles down to 0.1 micron in size and out HEPASilent technology unites the best in electrostatic and mechanical filtration. Its revolutionary combination of advanced filter media and an encapsulated ion particle charging chamber ensures that your Blueair purifier delivers results far superior than either mechanical or electrostatic technology alone. Our Pro L (which covers 780sq.ft.) covers 490-600 cubic feet per minute where the AeroCure covers 200 cubic feet per minute. Our units also offer 5 air changes per hour while the AeroCure will offer 2 air changes per hour. Five air changes per hour is recommended by the Association of Home Appliance Manufacturers (AHAM). Our units would help with your extreme allergies to dust mites, which tackling the harmful VOC's. If you have any other questions, please feel free to contact a Clean Air Advisor at 1(888)-258-3247 or
Answered by: Blueair Support Team
Date published: 2016-02-16

Good for sawdust?

Suction system in small wood shop not quite good enough to prevent extra fine dust from escaping tool surfaces. Is this an appropriate filter?
Asked by: JC
This would be a great filter to use if you are looking to filter saw dust. Our patented HEPASilent technology will capture the dust particles in your environement. Check out our blog on custom furniture makers Aaron Pahmier and Bladon Connor and how their Blueair unit helps with the dust in their shop. -
Answered by: Blueair Support Team
Date published: 2015-11-10
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Customer Reviews

HEPASilent Air Purifier is rated 4.9 out of 5 by 47.
Rated 5 out of 5 by from Sleeping better! My husband has environmental allergies including dust and dog and cat dander. I admit I'm not the best house cleaner and don't keep up with the dusting. We bought 2 units and keep one in the bedroom going full blast during the day with the door closed. At night it's turned to low and it runs quiet as a whisper!
Date published: 2016-04-30
Rated 5 out of 5 by from Expensive, but did the trick I have allergies and this "cured" them... Definitely expensive, but you get what you pay for. I don't sniffle at night...I wake up feeling refreshed... I definitely recommend this if you have the money. Plus, I know people that have bought less expensive purifiers and complain. So I repeat.. you get what you pay for.
Date published: 2011-12-26
Rated 5 out of 5 by from Great for older houses/allergies My husband and daughter have allergies/congestion almost year-round. We moved into a house built in the '80s, and the quality of the air was noticeably worse than in our previous residence due to older ventilation system/dustiness plus some kind of older place smell... We decided that 2 of 403 series air filters would be a good investment for our family as we really value our health. We had these air filters for over 6 months now. I have noticed significant improvements in my husband's and daughter's congestion and allergy incidents. Best part - there is noticeably less dust in the house and the "old house" smell has been gone. I would recommend this product.
Date published: 2014-06-21
Rated 5 out of 5 by from This product is fantastic I got this product because I am an asthmatic and have several allergy issues. Because of the purifier, I have not had any allergic reactions or asthma attacks. I have finally found a product that will help me have a good nights sleep without being woken up by an asthma attack or allergies. This product also works in silence, making it even easier to sleep. Overall this is a great product, and I would highly recommend it.
Date published: 2013-03-09
Rated 4 out of 5 by from I am satisfied overall with the Blueair 403, except for one thing: each time I receive a new filter, it takes a couple of days for the filter to off-gas. This is very challenging, as I have environmental sensitivities and must plan to stay out of the room for two days until the off-gassing is complete.
Date published: 2013-11-20
Rated 5 out of 5 by from AWESOME. Very effective help for a cat allergen situation. I move it from room to room and crank it up when gone from the house.
Date published: 2012-05-08
Rated 5 out of 5 by from 2 kids with breathing problems now I have two small children with asthma. Since the addition of the Blueair 403, the upstairs portion of our house is nearly dust free, the air quality can be sensed, and the kids sneeze a lot less. While we keep the house very clean, I am continually amazed at how dirty the filter is every 6 months when I change it. That alone is a testament to the quality of this unit. It is very quiet and energy efficient. I also LOVE the filter club which mails the filter every 6 months without me having to order it. Great customer service as well!
Date published: 2013-12-16
Rated 5 out of 5 by from Excellent Air Purifier This purifier does our intended purpose to filter smoke smell coming in from the smoke place outside of our office. We purchase the special smoke filter to be used in conjunction with the air purifier and it works great.
Date published: 2016-06-08
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