Blue Pure 121 Air Purifier by Blueair

Blueair Quality and Performance at an Affordable Price

  • Offers the same room coverage and particle filtration capabilities of Blueair’s higher-end models at a more attractive price
  • Uses both mechanical filtration and electrostatic technology to deliver better-than-HEPA air cleaning performance, with 52 sq. ft. of advanced gradient media capturing 99.97% of particulate pollutants down to 0.1 microns
  • Unique foldable combo filter incorporates an activated carbon mesh material for light chemical and gas adsorption
  • Comes with two washable fabric pre-filters (Dark Shadow and Diva Blue) designed to extend the life of the primary filter. Additional pre-filters can be purchased in 3 trendy colours to change the look of the unit or match your décor
  • Features a 360 degree air intake that draws polluted air in from all sides, with the air output positioned up top for perfect air circulation.
  • Whisper-quiet operation, producing only 31 dB on its lowest fan speed setting
  • Energy Star-certified for low power consumption and absolutely no emission of harmful ozone
  • Small footprint (13”x13”) allows for easy placement in space-challenged rooms or for unobtrusive operation in large spaces such as ensuite bedrooms, basements, offices and open concept living areas

Blue Pure 121 – Product Description
Blue Pure 121 – Filtration System
Blue Pure 121 – Operational Details
Blue Pure 121 – Construction and Measurements
Blue Pure 121 – Accessories and Other Details
Blue Pure 121 – Customer Reviews
Blue Pure 121 – Replacement Filters

Blueair Blue Pure 121 Air Purifier
click here for replacement filters

Blue Pure 121
by Blueair

Price: $569.00 CAD

Out of Stock

blue pure color swatch

Blue Pure 121 in room


The remarkable Blue Pure 121 air purifier from Blueair features an elegant design, washable pre-filter, whisper-quiet operation, low power consumption and outstanding air cleaning performance, but takes up just 13”x13” of floor space. Blueair's newly-designed folding combo filter contains 52 sq. ft. of particle filtration material, plus an activated carbon mesh material, enabling the Blue Pure 121 to capture both ultra-fine particulate matter and light chemicals, gases and odours. If you've been waiting for a high-performance air cleaner at an affordable price, the Blue Pure 121 is it!

The unique progressive-design combo filter in the Blue Pure 121 air purifier permanently captures airborne particles including pollen, dust, mould spores, pet dander, dust mite by-products, smoke particulates, combustion particles, printer/photocopier emissions, bacteria and other fine particulate matter. From there, the activated carbon mesh material incorporated in the combo filter takes over to handle low levels of ambient household chemicals and gases. If your concerns relate to VOC offgassing, tobacco or wildfire smoke, smog and other chemical/gas issues, however, we strongly recommend looking at Blueair’s Classic line of air purifiers equipped with optional DualProtection filters instead.

The Blue family of air purifiers has been designed from the ground up with airflow in mind, featuring a 360 degree air intake, a powerful but quiet motor, and an output at the top of the air purifier for effective clean air distribution. The bottom line is that the Pure 121 provides effective air cleaning no matter where it’s placed in your room. As polluted air is drawn into the Blue Pure 121 from all sides, airborne contaminants are electrically charged, ensuring that even the tiniest particles readily adhere to the oppositely charged filter media. By using electrostatic principles to enhance its mechanical filtration capabilities, the Blue Pure 121 air purifier is able to achieve better-than-HEPA performance, capturing an outstanding 99.97% of particles down to 0.1 microns, i.e., 3 times smaller than those trapped by standard HEPA air cleaners.

While most companies use standard triclosan-coated paper or glass filter fibres in their filters, Blueair uses non-toxic, non-woven polypropylene. Polypropylene is unique because it works without releasing irritating microscopic fibres into the air, and its water-resistant properties help to prevent contamination from bacteria, viruses and mould.

Blue Pure 121 features

With its low-density filter, the Blue Pure 121 barely makes any noise at all, in fact, the Pure 121 on high-speed produces less noise than most air purifiers do on low. For those who are ultra-sensitive to sound, the Blue Pure 121 produces just 31 dB on its lowest setting, i.e., is as quiet as a whisper in a library. Energy Star-certified, this room air purifier is 40% more energy-efficient than most other air purifiers on the market, costing only pennies a day to operate.

Like all the air purifiers that we sell, the Blue Pure 121 releases absolutely no ozone or ozone by-products into the air. When inhaled, ozone can irritate/damage the lungs and worsen respiratory diseases like asthma, defeating the whole purpose of using an air purifier in the first place.

To maintain peak air cleaning performance and ensure warranty coverage for your Blue Pure 121, Blueair specifies that the filter must be replaced every 6 to 12 months. When the indicator light on the one touch button turns red, it’s time to change the filter, with a yellow light giving you plenty of advance warning. Changing the filter on your Blue Pure 121 is a breeze. Simply click the buttons on the side of the air purifier to release the top motor housing from the lower filter housing, remove and discard the old filter, unfold the new filter and fit it inside the housing and then replace the top portion of the air purifier. When you hear the “click,” you’re done!

Blueair’s Pure 121 air purifier features a steel mesh lower housing designed to securely hold and protect the combo filter, and a high-impact plastic upper housing that contains the motor, making the unit both lightweight and durable. Two coloured fabric pre-filters are supplied with the Blueair 121, allowing you to alter the outer appearance of the unit - dark grey for a neutral look, or electric blue to add a splash of colour to your decor. Extra pre-filters can also be ordered in Buff Yellow, Crystal Pink and Lunar Rock (light grey).

To sum up, the Blue Pure 121 air purifier by Blueair is the perfect choice for those who want to effectively clean a large area for a reasonable price. Its compact footprint, ultra-quiet operation and better-than-HEPA capabilities make it ideal for ensuite bedrooms, basements and rec rooms, offices and open concept living spaces where unobtrusive operation is needed.

Blueair logo

Looking for replacement filters for this unit?   See Blue Pure 121 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 Washable fabric pre-filter (supplied in dark grey and blue)
Particle Filtration System Non-toxic, non-woven gradient polypropylene and polyethylene filter media, capable of trapping 99.97% of particles down to 0.1 microns
Number of Filters Required 1
Surface Area of Particle Filtration Media 52 sq. ft.
Type of Carbon Media Activated carbon mesh
Average Filter Life 6 to 12 months
Estimated Filter Replacement Costs $140
UV Lamp Not available
Room Coverage in sq. ft.**
(on High Speed Setting)
2 air exchanges/hr: 1575
4 air exchanges/hr: 790
6 air exchanges/hr: 525
8 air exchanges/hr: 395
Air Flow Rate**
(on High Speed Setting)
420 cubic ft. per min.
Air Intake 360 degree air intake system. Should be given at least 8 inches clearance around the unit
Air Output From the top of the unit
Ozone Emission None
Decibel Level 31 dB (low) to 56 dB (high)
Voltage 115/60Hz
Power Consumption 30 watts (low) – 61 watts (high)
Cord Length 5 feet
Safety Approvals CSA/UL approved
Motor Ultra-quiet, Energy Star qualified
Speed 3 control settings
Housing Construction Lower filter housing: steel mesh
Upper motor housing: high impact plastic
Filter Access Top housing lifts off to facilitate filter changes. No tools required.
Maneuverability Lightweight, easy to move or transport
Dimensions 28" (height) x 13" (width) x 13" (depth)
Operating Weight 21 lbs.
Shipping Weight 23 lbs.
Wi-Fi Enabled No
Friend App Compatible No
Remote Control No
Filter Life Monitor Yes
Optional Accessories None
Warranty 2 years upon registration with Blueair within 60 days of purchase and if filters are replaced with authentic Blueair filters on schedule as per the user manual, 1 year otherwise
Place Manufactured China
Colour Neutral white


“I have been running my Blueair Blue Pure 121 air purifier for several days now. I run it during the day on the second speed and then turn it down to the first speed overnight. I am very impressed with the job it is doing. I am no longer aware of the smell of second-hand cigarette smoke in the corner of my dining room the way I had been, and the smell does not meet my nose as I come in the door from my walks. When the purifier is on the second speed, there is a soft purr from the motor. When it is on the third speed, there is very little sound at all. Thank you for all your patience with my questions and for your assistance in trying to find the right air purifier for me.”
K. Bell, Comox BC

“We are very happy with our Blue Pure 121 air purifier. The air quality in our home is noticeably fresher since we began running it about a month ago. A big factor in our decision-making process was the quality of service from Modern Alchemy. I appreciate the thoroughness of their website, and Robert’s advice to us was super helpful. No hard sell here - just very kind, generous and knowledgeable service from someone who really knows what he’s talking about! Modern Alchemy is the only store I would recommend.”
Jo-Anne B., Montreal, QC

See All Blueair Reviews

** An Important Word on Air Flow Rates and Room Coverage for the Blue Pure 121 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 Blue Pure 121 be used in rooms of up to 395 sq. ft. (for premium cleaning) or 790 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.
email signup

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

Modern Alchemy medium large logo

Sign up to receive notifications about sales, exclusive offers and new products. Rest assured that we will not share your personal information with anyone and will email you no more than two or three times a year.