Blueair Classic 405 Air Purifier

Intelligent Air Cleaning for Mid-Size Rooms

  • Upgraded version of the Blueair 403, with advanced features that put you in full control of your indoor air environment
  • Integrated Wi-Fi capabilities enable you to operate the air purifier remotely with your smartphone.
  • Can also be used with the Blueair Aware Indoor Air Quality Monitor (optional), which automatically adjust the unit's fan speed in response to detected pollutants in the room
  • Effectively captures common indoor air pollutants such as house and textile dust, pollen, pet dander, dust mites and fungi/mould spores
  • Exclusive HEPASilent filtration technology removes 99.97% of airborne particles down to 0.1 microns, offering impressive fine-particle removal capabilities
  • Gas & Odour (GO) SmokeStop model offers additional protection from gas phase pollutants (e.g., VOCs) and tobacco smoke contaminants
  • Patented gradient filter system allows for whisper-silent operation – significantly quieter than most other air purifiers on the market
  • Re-engineered to use less power - just 15 watts on the lowest setting - for minimal impact on your electrical bills
  • All-metal housing for durability and no off-gassing
  • Recyclable components, biodegradable filters and no ozone emission
  • Perfect for use in mid-size rooms such as bedrooms, living or family rooms, workshops and playrooms, as well as small single-room apartments

Blueair Classic 405 - Product Description
Blueair Classic 405 - Filtration System
Blueair Classic 405 - Operational Details
Blueair Classic 405 - Construction and Measurements
Blueair Classic 405 - Accessories and Other Details
Blueair Classic 405/403 - Customer Reviews
Blueair Classic 405 - Replacement Filters

Blueair Classic 405 Air Purifier
click here for replacement filters

Blueair HepaSilent vs SmokeStop

Blueair Classic 405

HEPASilent Model
Reg. Price: $749.00 CAD

On Sale: $659.00 CAD
Plus Free Shipping
Until April 24th!

Blueair Classic 405

Gas & Odour (GO)
SmokeStop Model
Reg. Price: $839.00 CAD

On Sale: $739.00 CAD
Plus Free Shipping!

Choose your model:

Blueair 405 award


Replacing the recently discontinued Blueair 403, the new Blueair Classic 405 air purifier is engineered to not only be effective at removing airborne pollutants such as dust, pollen, pet dander and mould spores, but to be quiet, energy efficient and stylish at the same time. Using revolutionary technology, the Blueair 405 air purifier is capable of capturing particles three times smaller than traditional HEPA air purifiers can, providing improved filtration of hazardous, lung-penetrating particles such as ultra-fine dust, combustion particles, fine ash and even airborne bacteria.

In addition to its sleek new control panel and significantly lower energy consumption (on low), the most impressive new feature on the Blueair Classic 405 air purifier is that it is Wi-Fi enabled. By simply downloading Blueair's free Friend App (optional), you will be able to operate the Blueair 405's functions (e.g., airflow speed, LED light, child lock and night mode) from your smartphone wherever you have Wi-Fi access.

The Blueair Classic 405 air purifier is also compatible with Blueair's Aware Indoor Air Quality Monitor. The Aware monitors your indoor air, sending real-time air quality data on PM2.5 particles, Volatile Organic Compounds (VOCs) and CO2 to your smartphone or smart device over Wi-Fi. Setting your air purifier in auto mode then allows the Aware to automatically boost the speed on your Blueair 405 in response to high pollutant readings in the room, returning it to low once the air purifier has dealt with the problem. Use of the connectivity features (i.e., Aware monitor or Friend App) with the 405 is strictly optional - the air purifier will do a stellar job of cleaning the air on its own!

Exclusive to Blueair air purifiers, HEPASilent technology combines mechanical filtration and electrostatic principles to achieve outstanding air cleaning that outperforms medical-grade HEPA filters alone. As room air is drawn into the Blueair Classic 405 by an ultra-quiet fan, an internal ionizer exerts a negative charge over the incoming particles, ensuring that they adhere effortlessly to the positively-charged filter material. By using a gradient media filter with progressively smaller openings, the Blueair 405 air purifier is able to achieve remarkable air cleaning results, capturing an impressive 99.97% of particles down to 0.1 microns.

The Blueair Classic 405 air purifier is available in two models. The Blueair 405 HEPASilent model is intended solely for allergen and particulate matter control. For those seeking added protection from hazardous chemicals, toxic gases and unpleasant odours, we recommend the more advanced Blueair 405 GO SmokeStop model. The Blueair 405 GO SmokeStop unit offers wide-spectrum chemical, gas and odour control, while still achieving the same outstanding level of particle collection as the Blueair 405 HEPASilent model. Featuring 2.2 lbs. of coconut shell activated carbon pellets impregnated with magnesium dioxide and copper oxide, the Blueair 405 GO SmokeStop model provides additional safeguards from tobacco and wood smoke toxins, carbon monoxide and other gaseous combustion byproducts, ethylene oxide, ozone and the harmful volatile organic compounds (VOCs) found in every home and workplace (e.g., formaldehyde, ammonia and benzene). In fact, we highly recommend the SmokeStop model if you are also purchasing the Aware Air Quality Monitor to be able to quickly adsorb VOCs when they are detected by the monitor.

A low-density filter, noise-muffling galvanized steel and precision Swedish engineering allow the Blueair Classic 405 air purifier to clean the air more quietly than most other brands of air purifiers. On the two lowest fan speed settings, the Blueair 405 air purifier offers whisper-silent operation with sound levels so low that you may wonder if your Blueair unit is actually on. Energy Star rated, the Blueair Classic 405 uses a mere 15 watts of power on its lower fan speed setting, significantly less power than other air purifiers on the market.

Unlike standard electrostatic air cleaners, the Blueair Classic 405 air purifier is perfectly safe for asthma and allergy sufferers because it releases absolutely no ozone or ozone by-products into the air. In fact, laboratory tests show that operating a Blueair 405 significantly reduces ozone concentrations in rooms where electronic devices (e.g., computers, printers, televisions) are operated.

Instead of the standard triclosan-coated paper or glass filter fibres used by other manufacturers, Blueair filters are constructed from ultrasonically bonded non-toxic polypropylene fibres. This material is the least harmful plastic for both people and the environment, and achieves outstanding performance without out-gassing or releasing irritating microscopic fibres into the air. Because Blueair filters are also waterproof, they naturally resist contamination from bacteria, viruses, and mould without chemical additives or washes.

To maintain optimal air cleaning performance and ensure warranty coverage, the filter in the Blueair Classic 405 air purifier must be replaced every 6 months. The air purifier's built-in filter replacement indicator will remind owners when it's time to change the filter. The filter itself can be replaced in about 30 seconds. Just open the door of your Blueair 405 unit, remove the old filter, slide the new one in, and close the door. Fast and simple!

Built for years of reliability, the Blueair Classic 405 air purifier has an all-steel housing that is powder-coated for endurance and protection, without any chemical off-gassing. In addition to their zero ozone emission, all Blueair air purifiers are constructed from environmentally friendly parts and recyclable materials. When discarded, Blueair filters decompose and the filter media converts into harmless carbon dioxide and water.

The sleek design, quiet operation and generous room coverage of the Blueair Classic 405 air purifier makes it perfect for mid-size spaces, including bedrooms, living rooms, family rooms, playrooms and workshops, as well as small single-room apartments. The Blueair 405 has built-in hand grips on either side of the unit for easier maneuverability, and is a neutral off-white and dark grey colour to blend into almost any décor.

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Looking for replacement filters for this unit?   See Blueair Classic 405 filters
Not what you’re looking for?   See other Blueair air purifiers
Want to compare Blueair air purifiers?   See Blueair air purifier comparison chart

Pre-Filter None
Particle Filtration System Non-toxic, non-woven gradient polypropylene filter media, capable of trapping 99.97% of particles down to 0.1 microns
Type of Filters Available HEPASilent
GO SmokeStop
Number of Filters Required 1
Type of Carbon Media HEPASilent: None
GO SmokeStop: Specially blended activated carbon pellets impregnated with magnesium dioxide and copper oxide
Carbon Weight HEPASilent: N/A
GO SmokeStop: 2.2 lbs.
Surface Area of Carbon Media HEPASilent: N/A
GO SmokeStop: 275 acres
Average Filter Life HEPASilent: 6 months
GO SmokeStop: 6 months
Estimated Filter Replacement Costs HEPASilent: $80 (or $65 if a Twin-Pack is purchased)
GO SmokeStop: $150 (or $130 if a Twin-Pack is purchased)
UV Lamp Not available
Average UV Lamp Life N/A
UV Bulb Replacement Cost N/A
Room Coverage in sq. ft.**
(on High Speed Setting)
2 air exchanges/hr: 1060 / 1010 (HEPASilent / GO SmokeStop)
4 air exchanges/hr:   530 / 505
6 air exchanges/hr:   350 / 330
8 air exchanges/hr:   265 / 250
Air Flow Rate**
(on High Speed Setting)
HEPASilent: 280 cubic ft. per min.
GO SmokeStop: 265 cubic ft. per min.
Air Intake On right side of unit
Air Output On left side of unit
Ozone Emission None
Decibel Level 32 dB (low) to 52 dB (high)
Voltage 115/60Hz
Power Consumption 15 watts (low) – 90 watts (high)
Cord Length 5 feet
Safety Approvals CSA/UL approved
Motor Ultra-quiet, Energy Star qualified
Speed 3 control settings
Housing Construction All-steel with baked-on powder-coated finish
Filter Access Front panel door easily opens to facilitate filter changes. No tools required.
Maneuverability Built-in hand grips on both sides of unit
Dimensions 23” (height) x 20” (width) x 11” (depth)
Operating Weight HEPASilent: 33 lbs.
GO SmokeStop: 35 lbs.
Shipping Weight HEPASilent: Approx. 37 lbs.
GO SmokeStop: Approx. 40 lbs.
Wi-Fi Enabled Yes
Friend App Compatible Yes
Blueair Aware Compatible Yes
Remote Control Yes (through smartphone with Blueair's free Friend App)
Filter Life Monitor Yes
Programmable Timer No
Optional Accessories Blueair Aware Indoor Air Quality Monitor ($269)
Warranty 5 years if filter is purchased from an authorized dealer and replaced every six months without fail (keep receipts),
1 year otherwise
Place Manufactured China
Colour Neutral off-white/dark grey

BLUEAIR CLASSIC 405/403 - CUSTOMER REVIEWS (Includes reviews for the non Wi-Fi enabled model 403)

“The Blueair 405 GO SmokeStop air purifier that I purchased from you was a good deal and has been working very well. Thanks so much!”
F. Ning, Richmond Hill, ON

“We have now been using the Blueair 403 HEPASilent air purifier for a week and both my wife and I are extremely satisfied. The Blueair 403 was for our bedroom, and in one night we immediately noticed a difference in the air quality. While the main reason for getting the air purifier was for my cat allergies, we are both sleeping better. I am a light sleeper, but the unit noise at the two lowest levels does not even register with me during the night. Also, thank you for the prompt delivery. I definitely recommend a Blueair unit and your company to anyone who is thinking of purchasing an air purifier.”
D. Crabb, Kingston, ON

“So far my Blueair 403 HEPASilent air purifier is working really well. I am almost off all allergy medication for my 2 kittens, and hopefully with some diligent cleaning, I can soon be completely medication free! It's made a huge difference, and as promised, it is very quiet.”
K. Pettit, London, ON

“I hardly ever give reviews, but Modern Alchemy certainly deserves one. The Blueair 403 HEPASilent air cleaner that you supplied is as quiet and efficient as claimed and your no-quibble service when I raised a small problem was outstanding. I have no connection with Modern Alchemy, other than as a satisfied customer.”
T. Whieldon, Balderson, ON

See All Blueair Reviews

** An Important Word on Air Flow Rates and Room Coverage for the Blueair Classic 405 Air Purifier:

Many retailers and manufacturers overstate maximum room coverage figures by calculating them with air flow rates measured without filters installed (i.e., fan output) or with too low a number of air exchanges per hour to properly clean the room. Modern Alchemy Air Purifiers believes in stating the actual delivered air flow rates for the air purifiers we sell, as well as realistic room coverage figures calculated at effective air cleaning levels. Accordingly, we recommend that the Blueair 405 HEPASilent be used in rooms of up to 265 sq. ft. (for premium cleaning) or 530 sq. ft. (for general purpose filtration). The Blueair 405 GO SmokeStop should be used in rooms of up to 250 sq. ft. (for premium wide-spectrum cleaning) or 505 sq. ft. (for general purpose filtration).

Note that air purifier performance should not be judged by air flow rates and room maximums alone. Many features that make an air purifier more effective at cleaning the air actually reduce the air flow rate. For example, higher grade HEPA filters, well-sealed filtration systems and large amounts of carbon all increase air resistance and reduce delivered air flow rates.
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Modern Alchemy Air Purifiers is 100% Canadian-owned, operating out of Ottawa, Canada. We proudly serve Vancouver, Calgary, Edmonton, Regina, Winnipeg, Toronto, Montreal, Halifax, St. John’s and all points in between.

To order by phone, or for more information, call: 613-894-0331
Toll Free: 1-877-467-7873

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