My Favorite Air Purifier | Blueair 211+ Air Purifier | What is the Best Blueair Air Purifier for My Home?


Air purifiers are some of the coolest things out there for people like me who have allergies. I’m not just talking seasonal allergies, I mean those yearlong ones that can make life miserable, especially when you run out of antihistamines.

blueair 211 air purifiers with color options, hepa filter with built-in carbon filters and washable prefilter

The Blueair 211+ Air Purifier is great for allergy sufferers.

This air purifier gets rid of the dust and dander that plague a lot of our homes today. Those of us who are sensitive to these things know how nice it is when we get in a room that doesn’t have them. We breathe easy and take a breath of fresh air.

The Best Things About the Blueair 211+ Air Purifier for Your Home

The Blueair 211+ is one of the best air purifiers out there. It cleans the air thoroughly and is super quiet. You’ll forget it’s running most of the time since it’s so quiet!

On top of that, this air purifier isn’t ugly. It doesn’t stand out. There are so many air purifiers out there that are big, bulky, and so noticeable. It blends in with your home and, since it has several different color bases, you can customize it based on your home’s design pallet! (More on that in a bit.)

As I already said, the Blueair 211+ is fantastic at cleaning the air in your home. It’s so good at that because it uses so many different filters. The pre-filter, electrostatic plate, and HEPA filter all work to take particles (including allergens) out of the air.

Not only does it clean out all those allergens, but it is also great at taking care of odors, smoke, and even dangerous gasses called VOCs. If you’d like to read more on VOCs, then you can check out the post we have on them here.

What Room Should I Put My Blueair 211+ In?

Most people put their Blueair 211+ in their family room/living room. Those that have kitchen and dining rooms that lead into these larger rooms are able to greatly benefit from buying just one machine for all those rooms. This air purifier is great for open floorplans with several adjoining rooms.

Air purifiers are made to cover certain sized rooms. The Blueair 211+ is built for rooms/areas that are roughly 540 square feet. If your room is too much smaller or larger than that, then you’ll want to buy a larger or smaller Blueair unit. All of these Blueair units work the same, so you don’t have to worry about not getting the same quality of air just because the different size.

Blueair Air Purifier Sizes

Blueair Pure 411 Auto (Small)

The smallest Blueair machine, the Blueair Pure 411 Auto, is also the cheapest. (Just like with pizzas, smaller is cheaper, but that doesn’t mean it’s the best.) The Blueair Blue Pure 411 Auto is designed for smaller rooms like bedrooms, nurseries, and home offices. If your room is about 150 square feet, then this is the air purifier for you!

If you’re looking for more info on this air purifier, or for some links to find it’s replacement filters, check out our post on it here.

Blueair Blue Pure 311 Auto (Medium)

The next size up is the Blueair Blue Pure 311 Auto. This machine is designed for mid-sized rooms like a master bedroom. If the room you’re looking at is about 388 square feet, then this is the air purifier you should check out.

If you’re looking for more info on this air purifier, or for some links to find it’s replacement filters, check out our post on it here.

Blueair Blue Pure 211+ (Large)

This is the air purifier this whole post was about. It’s great for larger room that are about 540 square feet.

Blueair Blue Pure 121 (Extra-Large)

This is the largest size the Blueair has in the Blue selection of air purifiers. It’s for rooms and areas that are even larger than 540 square feet. How much larger? All the way to 700 square feet! It’s designed for any room that’s between 600 and 700 square feet, which should cover most of the rooms that most people will have.

If you’re looking for more info on this air purifier, or for some links to find it’s replacement filters, check out our post on it here.

Once again, all these machines purify the air in the same way, so you don’t have to worry about having dirtier air if you buy a smaller and cheaper machine. That being said, you will probably have dirtier air if you buy the smallest unit for a really big room–you have to buy the right machine for the right size room to have the best possible air quality.

What Color Options Does the Blueair 211+ Have?

There are lots of air purifiers out there that offer color options. Problem is, most of those options are limited to black, white, and grey. When you’re dealing with larger air purifiers, the thought of having a big old black monolith in the middle of your room isn’t ideal. They’re not very pretty.

The Blueair 211+ is a lot more design friendly.

While this machine is a little big, 13 inches by 13 inches by 21 inches, it isn’t as big as other machines that take care of areas as large as this one. For reference, this air purifier is about the size of a large indoor pot that you’d have a larger indoor plant in.

With all that out of the way, here are the different color options out there for this air purifier!

blueair 211 air purifiers with color options, hepa filter with built-in carbon filters and washable prefilter color comparison

Pink “Crystal Pink”

Yes, they have pink. I know that may sound a little bright for some of our home pallets, it does work great for others.

Yellow “Buff Yellow”

Here’s another color that might be a little bright for a lot of us. However, it could be a great option for those of us who can’t seem to get enough yellow!

Grey “Lunar Rock”

Yes, they have a nice, neutral grey tone too. This is a nice color that will probably blend in with a lot of people’s color preferences.

Blue “Diva Blue”

This blue is a lot less in your face than you might think! It’s a nice, soft blue that might work for you.

Black “Dark Shadow”

Finally, you have the standard black color that everyone knows and loves. While the black stands out a bit, it still might be a good color to go with. After all, black goes with everything, right? I might add that every air purifier you buy should come with this one, so you shouldn’t have to pick it up, unless you’re keen to have a backup to your backup, at least. (These units come with two pre-filters when you buy them new.)

All of these color options are just for the fabric bottom half of your air purifier. The white upper portion is the only option that you have at this time. These pre-filters are washable and should be washed every so often. I find once every two weeks is good enough. They’re pretty easy to take off and put back on.

Where Can I Get Replacement Filters for My BlueAir 211+?

Replacement filters for your Blueair 211+ are super easy to get–but you have to be sure that you get the right ones! There are three different sizes of Blueair air purifiers, basically just small, medium, large, and extra-large. The 211+ is the “large” size (in our book, at least).

To get a replacement filter for your 211+ machine, just follow this link.

You will have to replace your main air filter about every six months if you have your machine on all day every day. Unfortunately these filters are not washable, so you might want to pick up a few of these at once so you remember that they have to be replaced.

Something super neat about this air purifier is that there is a light around the button that you use to turn it on. When the filter needs to be replaced, a red light will turn on!

Frequently Asked Questions

How Hard is it to Use the Blueair 211+?

It’s super easy! Just plug it in and click the button on the front! There are other air purifiers out there that give you a bunch of different settings, Blueair found that ease of use was what mattered most to people like you and me.

How Hard is it to Clean the Blueair Pre-Filter?

It’s easy! These pre-filters are machine washable and they go on the bottom of your air purifier like a sock. It might take you a little bit on your first try, but you’ll get the hang of it!

What is the Difference Between the Pre-Filter and Filter in a Blueair 211+ Air Purifier?

The pre-filter is the fabric cover on the bottom of the unit (the blue, black, pink, grey, or yellow one). The filter is the hard boxy thing that in inside of the cage the fabric pre-filter goes around.

What Happens if I Buy an Air Purifier the is Rated for a Small Room and I Put it in a Big One?

If you buy an air purifier that’s not rated for a room as large as the one you put it in, then you’re going to have dirtier air and/or an air purifier that needs more maintenance. It will likely go through it’s filters a lot faster, and that’s an expense that can pile up. Don’t save a few bucks now and lose out in the long run, buy the size machine you need.

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Kaela Stone

Kaela is one of Air Purifier Essential's key contributors. She has been using air purifiers for her whole life and can't imagine life without one.

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