Blueair - DustMagnet™ 5440i
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Reddit Reviews:
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Based on 1 year's data from Mar 17, 2026 How it works
Liked most:
21
1
"I have terrible allergies and use Blue Air on every level. Works amazing."
"Super noticeable difference ... even just the fabric pre-filters catch a lot and their appearance varies from room to room (ex. dust in the bedroom, cooking oils in the kitchen) which leads me to believe they’re working!"
"It's amazing the difference it makes. ... Also the filters are a wildly different color when I replace them."
12
0
"I have terrible allergies and use Blue Air on every level. Works amazing."
"happy to hear from guests our house doesn’t have a dog smell."
"Blueair has been awesome for our basement, dogs, cats, sometimes chickens and always a burning fire for the wood stove and you would honestly have no idea all of that was going on. ... I wfh in the basement sometimes and I could tell that without that I was feeling gunky. Buying it made a huge difference!"
6
0
"Dead silent on the first setting"
"the fans are nice and quiet"
"I like that it has a night mode with a silent fan and no lights."
3
0
"They're incredible and the best thing is that they have this washable cloth sleeve (pre filter) that goes over the entire intake which happens to wrap all the way around. ... It does such a good job that the actual internal filter stays significantly cleaner and doesn't need to be cleaned or changed as often. ... It's a game changer."
"Blueair imo because they have washable prefilters, and pet hair and dander is large and honestly doesn't need HEPA filters to clear it out the way, say, smoke does."
"Blue air. The prefilter is washable."
3
1
"Premium built, that's for sure."
"they’re holding up better than the Blue Air’s I got."
"My kids run Blueair 24/7. You’re overthinking this. They all clean air."
Disliked most:
2
2
"Blue air is the best of the three, also isn’t HEPA but has a static generator which bothers some people."
"Although you'll find complaints it doesn't use a "real" HEPA filter"
"Blue air is the best of the three, also isn’t HEPA but has a static generator which bothers some people."
0
1
"I don’t like they have an ionizer that you can’t disable. ... Ionizers create ozone, and when ozone reacts with different molecules it creates all kinds of new compounds that can’t be predicted."
2
1
"Maalikabok pa rin kahit super sealed yung unit."
1
2
"the larger sizes have significantly more expensive filters"
"BlueAir is ok but the filters are small and replace more often."
0
1
"the auto setting barely did anything unless I literally blew smoke at them"
"Their sensors suck"
amosslet 1.0Agree. I've had my BlueAirs (one big one, two small in-room ones) for up to 5 years now, in a wildfire-affected area, and they are great. I think they also market one[ optimized for dust collection.](https://www.blueair.com/products/dustmagnet-5400-series)
x72756465 1.0I have two Blueair DustMagnet 5440i. There is an extension to connect it to HA with all sensors and controls available. It filters air great, so my wife can survive the allergy seasons. Additionally, it filters air from nasty smells, like ones my son carries after extensive sports training.
cpapp22 0.5Even their dust magnet has a shelf on top and exhausts on the sides
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
MysterySkanker 0.0I have tried and gotten rid of Bluair and levoit- just inadequate performance and louder than I like. I replaced them with Medify and have been very happy with the switch. If memory serves I have an ma-50 in the living room and ma-40 is each bedroom.
9ine6ix5ive 0.0I have BlueAir in all my rooms. Makes a significant difference for me.
Acceptable-Basil4377 0.0It helps a lot. I bought it due to smoke but I’m happy to get rid of cooking and dog smells. I have one from Blueair.
accountaholic26 0.0We love our blueair also. Got a dog a month ago and happy to hear from guests our house doesn’t have a dog smell.
Adorable_Dust3799 0.0I love my blueair. It's highly rated for the price, and has a cloth sleeve you wrap around the outside and toss in the wash that prefilters out the husky fluff. If your pup is smelly it's probably oily, and needs either more roll in leaves and dirt time or more frequent bathing. A simple rub with a damp cloth frequently, like daily if you're not using soap, will work wonders.
Affectionate_Bus_884 0.0I’ve been using blueair purifier. I have 5 of them a few I’ve owned for over 4 years and I love them.
Agent_03 0.0Sorry, what "air quality problems"? Can't say we've noticed any, with our 3 air purifiers running 24/7 in a one-bedroom apartment... 😉 (Both of us have pollen allergies and one of us has asthma.) That should answer your question. Seriously, buy an air purifier. Once you feel the difference you'll probably end up getting a few more. We've got two of the medium Coway models (Airmega AP-1512HH or 200M) and a smaller BlueAir. They also help with smells -- bathroom, pet, or cooking. Highly recommend the Coways because they: * Are whisper-quiet on all but the highest setting, and can auto-adjust (though we usually leave them on medium because they get loud if they kick into high). * Move a lot of air for their size * Have filters that last way longer than they're rated for (as long as you clean the prefilter) * You can turn the main light on the purifier off for use in a bedroom at night Tip: it's better to get several medium air purifiers and put one in each room or area rather than getting just one big one.