Home » Blueair 121 vs Blueair 211: Which Air Purifiers are Better?

Blueair 121 vs Blueair 211: Which Air Purifiers are Better?

Whether you are suffering from allergies or have had a season of heavy fires, the quality of your air might be below healthy. Air purifiers not only help to protect your health, but they can also help remove things like cooking and pet odors.

Blueair has a series of air purifiers that use quality materials and design at the right price. We are going to look at the Blueair 121 vs 211. We will discuss all of their specifics including energy efficiency, filtration and noise levels. We will include a comparison chart, some pros and cons and finish up with the final verdict.

Blueair 121 vs Blueair 211

Let’s begin with what the Blueair 121 and the Blueair 211 have in common.

Blueair 121 vs Blueair 211 – Similarities

Quick Glance

The side-by-side chart below will recap all the features of the Blueair 121 and the Blueair 211.

 

Blueair 121

Blueair 211

Image Blueair 121 Blueair 211
Size 28.3 x 13 x 13 inches 20.25 x 12.8 x 12.8 inches
Weight 18.2lbs 12.5lbs
Design 360º air intake, colored washable pre-filters 360º air intake, colored washable pre-filters
Room Size 620 sq ft./ 5 air exchanges per hour 540 sq. ft/5 air exchanges per hour
Clean Air Delivery Smoke/dust/pollen 400 CFM Smoke/dust/pollen 350 CFM
Speeds 3- one-button control 3- one-button control
Timer Yes No
Noise Levels 31-56dB 31-56dB
Filtration 3-part filtration- washable pre-filter, particle mesh filter, activated carbon filter (99.97% of particles) 3-part filtration- washable pre-filter, polypropylene particle mesh filter, activated carbon filter (99.97% of particles)
HEPASilent Technology Yes Yes
Filter Replacement Indicator Yes Yes
Energy Efficiency 30-61W 30-60W
What’s Included Dark shadow and Diva blue washable pre-filters, 1 carbon filter Dark shadow and Diva blue washable pre-filters, 1 carbon filter
Warranty 1 year 1 year
Price

Design

The Blueair 121 and the Blueair 211 are designed to take in air at 360º so that air is cleaned from all over the room. The top half is white, and the bottom has a washable pre-filter. Included with the air purifiers is a dark shadow and a diva blue filter. You can also buy other colors such as yellow, pink and gray.

Speeds

There are three speeds with the Blueair 121 and the Blueair 211. For easy use, there is just one button on the front of the air purifiers that controls them.

Noise levels

For nighttime use, the Blueair 121 and the Blueair 211 are exceptionally quiet. On the lowest setting they are rated at 31dB and the highest, 56dB, so now louder than an electric toothbrush, for example.

Filtration

The Blueair 121 and the Blueair 211 have 3-stage filtration. The first stage is the washable pre-filter followed by a particle mesh filter. The final stage is an activated carbon filter that is excellent for removing odors. The Blueair 211 is listed as having a polypropylene mesh filter.

HEPASilent Technology

It’s important not to mix this up with a HEPA filter! The HEPASilent Technology with the Blueair 121 and the Blueair 211 uses electrostatic filtration to remove 99.97% of airborne particles.

Filter Replacement Light

For easy maintenance, the Blueair 121 and the Blueair 211 both have a light indicator for when the filters need to be replaced.

Energy Consumption

Both the Blueair 121 and the Blueair 211 are rated as low energy consumption, so they aren’t expensive to run. Depending on the setting, the Blueair 121 consumes 30-61W and the Blueair 211 30-60W, not enough to make a difference for us.

Warranty

There is a one-year warranty with the Blueair 121 and the Blueair 211.

There are still a few important differences between the Blueair 121 and the Blueair 211, which we will look at now.

Differences Between Blueair 121 and Blueair 211

Appearance

The choice of washable pre-filter will change the appearance, but there is also a difference in size.

Blueair 211

Blueair 121

This air purifier is quite a bit taller. The overall measurements are 28.3 x 13 x 13 inches and it weighs 18.2 pounds.

Blueair 211

As well as being smaller at 20.25 x 12.8 x 12.8 inches, it also weighs less at 12.5 pounds.

The Winner Is- The Blueair 211

Room Size

In order for an air purifier to be effective, you should make sure you get the right room size.

Blueair Blue Pure 211

Blueair 121

You can use this air purifier in areas of up to 620 square feet. It performs 5 air exchanges per hour.

Blueair 211

It is better for smaller spaces of up to 540 square feet, but it will also clean the air 5 times per hour.

The Winner Is- A Tie

Clean Air Delivery

The general rule of thumb is to look for an air purifier with around 100 CFM (cubic feet per minute).

Blueair 121 comparison

Blueair 121

It will clean smoke, dust and pollen at 400 CFM

Blueair 211

In this case, you have a 350 CFM for smoke, dust and pollen.

The Winner Is- A Tie

Timer

For convivence, some people might want to set a timer for a regular cleaning schedule.

Blueair 211 comparison

Blueair 121

This air purifier has a timer.

Blueair 211

There is no timer with this air purifier.

The Winner Is- The Blueair 121

Pros and Cons

To help make a well-informed decision, we have included some pros and cons of the Blueair 121 and the Blueair 211.

Blueair 121

Blueair 121 Blue Pure

Pros:

  • Super easy function
  • Good results on air quality and fast
  • One of the highest CADR ratings on the market

Cons:

  • Some people have noticed a strong smell in the early days

Blueair 211

Blueair 211 review

Pros:

  • Excellent air cleaning performance
  • The filters are good value
  • It’s a well-built air purifier

Cons:

  • It’s a shame there is no automatic feature

The Final Verdict

When it comes to purifying air, the Blueair 121 and the Blueair 211 do an amazing job with noticeable results fast. We love the simple but elegant design and as far as air purifiers go, they are quiet. The main differences weren’t really about the quality of the air purifier but the size of the intended space. If you have a larger area, the Blueair 121 is the better option. However, it is also nearly $200 more expensive, and we don’t feel that a timer justifies this. So, today, the winner is the Blueair 211.


Leave a Reply

Your email address will not be published. Required fields are marked *