Blueair Blue Pure 121 Air Purifier Review

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In Brief: Blueair Blue Pure 121 Air Purifier Review

The Blueair Pure 121 is an excellent choice for people with open-air spaces who need a purifier to clean the air volume in the significant areas of their homes or studios. The Blue Pure 121 scores top marks in aesthetics, technology, operations, and purification efficiency. We highly recommend this air purifier to all !

Blueair has five significant families of air purifiers that are namely – Blue, Classic, Cabin, Pro, and Sense+. All the different families of air purifiers have their unique identifiers and functionalities that cater to the various air purification needs.

A quick glance at the Blueair Blue air purifier family will reveal three uniquely designed air purifier models.

The aesthetics of these models set them apart instantly from any model that you would have laid eyes on before.

In the following sections of this article, we will take a quick look at the Blue Pure 121 air purifier, which is the largest in the Blueair Blue segment with a coverage area of up to 57 sq. m.

Read on to know more about this model and learn about its workings and functionalities !

Key Specifications Of Blueair Blue Pure 121

Source: Blueair

Within the first 12 minutes of operation, the entire air volume in your large room is purified by the Blue Pure 121 air purifier. It is designed explicitly for extra-large room and big open spaces.

The purification of air by Blue Pure 121 is done with the help of the standard combination of particle and carbon filter.

However, the USP is the optional availability to the users to upgrade and get an Extra Protection Filter. Another aspect is the fabric pre-filter offered in several colors to let the users choose as per their preference.

This colored pre-filter will help the users keep the aesthetics of the air purifier aligned with the room.

The patented HEPASilent™ technology is an integral part of the Blue Pure 121 air purifier using its potent electrostatic and mechanical filtration to deliver cleaner air in a more energy-efficient and quiet manner.

The key specifications of this Blueair air purifier are summarized below :

Purification TechnologyHEPASilent
Filtration Stages3
FiltersPre-Filter, Activated Carbon, HEPA
Coverage AreaUp to 620 sq. ft.
CADR (CMH)680 (Pollen, Dust, Smoke)
Power Consumption30 to 61 W
31 to 56 dBA
Dimensions (H X W X D)720 x 330 x 330 mm

Unique Features

Source: Blueair

The presence of a colored fabric pre-filter surrounding the air purifier body is a design innovation first seen in the Blueair Blue family.

The designers have addressed the aesthetic aspects of having an air purifier in a prominent space in your house and allowed you, as a user, to choose a color that will better blend with the area where you want to use the air purifier!

The Blue Pure 121 also boasts of a one-button design where most other air purifiers are bogged down with control panels and multiple buttons.

There is no need for the user to carry out excessive adjustments on knobs or buttons anymore.

Lastly, the air purifier is focused on energy conservation in all aspects.

Not only does it ensure that the clean airflow is effectively distributed all across the room, but it also ensures that the machine’s LED lights are dimmed automatically after 7 seconds to about 10% brightness.


What All Impurities Blueair Blue Pure 121 Removes

The most common contaminants plaguing the indoor air in our homes are removed with an efficiency of 99.97% down to the size of 0.1 microns.

These impurities can be physical airborne impurities visible to the naked eye, chemical impurities like unwanted odors and gases, or biological impurities like microorganisms.

The pollen, dust, mold, dust mites, pet dander, hair, smoke, cooking odors, viruses, etc. are all removed, including several other PM2.5 contaminants that we haven’t named here.

Can Blueair Blue Pure 121 Remove Viruses ?

Yes, the high-grade HEPA filter used in Blue Pure 121 air purifier is noted to remove particles as small as 0.1 microns with an efficiency of 99.97%. This would include certain varieties of viruses.

Blueair Blue Pure 121 Air Filter Systems : How It Purifies Air

The HEPASilent™ technology is a universal common ground between all the Blueair purifiers across different families.

The air enters Blue Pure 121 via its 360-degree intake, which draws the air into the purifier efficiently from all sides (regardless of where you place) it with the help of an ultra-silent fan.

The more significant impurities are trapped by the combination of the particle and activated carbon filter.

All the particle impurities present in the air are electrostatically charged on entering the unit, and with this negative charge, they are attracted to the positive filter media.

This combination of both processes ensures no particulate matter can escape the confines of the Blue Pure 121.

Blue Pure 121 also goes one step ahead as compared to its counterparts with the fabric pre-filter, which traps the biggest of the contaminants to extend the life of the particle and activated carbon filter.

This results in a 3-stage filtration system as compared to the usual 2-stage purification in other Blueair purifiers.

Additionally, if you live in a heavily polluted area, you also have the option of upgrading the purification system with an Extra Protection Filter.

This filter will be made of activated coconut carbon pellets and will help in additional adsorption of odors, chemicals, and harmful gases from the air.

Ultimately, the purified air is circulated throughout the room, free from any harmful contaminants !


Filter Change, Repairs, and Warranty

Source: Blueair

Filter Change Requirements

The filter replacement indicator is made of a built-in LED warning system that will glow automatically when it is time to change the filter.

However, Blueair suggests that to ensure optimal performance, it is best to keep changing the air purifier filters every six months. The filter design of the Blue Pure 121 is unique with its cuboidal shape.

The Amazon purchase link for the same here>.

You can also buy the different colors of pre-filters from Blueair via their authorized sellers, both online and offline.

Repairs and Warranty

There is a one-year warranty for the Blueair Blue Pure 121 air purifier. It is extendable for another year by merely registering the product at

For any information regarding Blue air purifiers, you can contact Blueair via call or email at 1860 210 1000 and [email protected], respectively.

A contact page is also available at

Price of Blueair Blue Pure 121 and Its Filters

The Blueair Blue Pure 121 air purifier is an economically priced model for the large coverage area that it offers.

This is an uncharacteristic development for Blueair, which is usually a premium brand with high-cost purifiers.

The replacement filter is also charged similar to the industry average and is available easily. We feel that the one-time investment in Blue Pure 121 is well worth the cost.


Who Should Buy Blueair Blue Pure 121 ?

The Blue Pure 121 air purifier is designed for addressing the air purification needs of a large room with its impressive 620 sq. ft. coverage.

The air purifier works efficiently in open concept floor plans, be it basements, studios, or other wide-open areas.

Why We Like It

There are a number of factors that set the Blue Pure 121 model apart from the others.

The focus on aesthetics to deliver a more customer-friendly product, the one-button interface, the 360-degree air intake filter design are unique features of this air purifier that are not found even in other families of Blueair models.

We also like that Blueair has provided such a large coverage area air purifier at a fairly reasonable rate and addressed the need for a good air purifier for open-plan spaces.

The emergence of open plans in offices and homes calls for an air purifier like Blue Pure 121 !

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