Blueair

DustMagnet 5210i

Blueair DustMagnet 5210i

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Overall

#295 in

Air Purifiers

according to Reddit Icon Reddit

Sentiment score40% positive
2
2
1

Top Pros

Top Cons

Last updated: Jun 26, 2026

Reddit Reviews

Reddit IconAli_Browny
6 months ago

We also have four Blueair headphones… 3x 5210i and 1x 5410i. The filter performance is excellent, but the support is abysmal. We noticed a bearing failure in one of them after 3 months, and support kept going back and forth, explaining that they couldn't hear the problem in a multitude of videos. Interestingly, half a dozen people we know heard the problem instantly. 😉 Product great. Service terrible.

Reddit Iconauntie_
27 days ago

I’ve got a bunch of Blueair filters including the dust magnet one and I love them. They will sometimes have great sales, which is how I ended up with my first two during Covid. I recently also got their humidifier which is amazing. My mom came to visit and said she was sleeping better than she had in a while because her allergies were finally more settled down, which may have also just been from a change in habitat, but I really think these air purifiers are great.

Reddit Iconcpapp22
5 months ago

Even their dust magnet has a shelf on top and exhausts on the sides

5 months ago

My Blueair dustmagnet has the top and bottom as intakes, exhausts in the sides. The top has a shelf that you can actually use as a shelf. I think something like that would help

Reddit IconEagleEyeUSofA
5 months ago

Blueair has a small one that would fit that space for $99 on Amzn or other retailers. I have next size up and so far so good and noticeable decrease in dust. I like being able to control it and monitor its cleaning via the app. Not advocating for the company other than after doing some research I settled on them and so far am happy.

5 months ago

I have a Blueair for small room and can really sense a difference. I like the app as well to track purity and change settings. So many options out there though.

Reddit IconScientific_Methods
4 months ago

I also have a couple of BlueAir and the scheduling feature for smart purifiers is very nice to have. I have it set to run on the lowest fan setting all the time which is so quiet it's undetectable, and ramp it up for a few hours in the afternoon right before we get home from work.

Reddit Iconlilyhazes
11 months ago

Multi level approach works well. - Decent filter you change more regularly for your HVAC (agree with others that MERV shouldn't be too high) - Clean floors, if you have carpet get a deep carpet cleaning annually - Room air filters. I've had luck with Blue Air. Have one jig one for living room and some small ones for the bedrooms. - Have you tried using regular saline rinses for your nose? I use the powder saline mixes with the plastic applicator from NeilMed, but there are others out there. While my allergies are pretty mild, I haven't needed to take any allergy medicine at all since using these.

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Rankings by Use Case

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