
Blueair - Blue Pure 511i Max
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Last updated: Oct 13, 2025 Scoring
Blue air is great, they have a smaller purifier for like 80 bucks. I have the 311 auto but I think the 511 is probably what you're looking for. I run mine on low continuously and it's whisper quiet (especially after initial break in period), medium speed is tolerable. I only run it on high if I'm about to leave the space. Where all these purifiers get you in cost is the new filters.
r/AirPurifiers • Best air purifier under $100? ->I’m anti-Levoit right now after previously being a fan of their stuff - I had a Levoit Core 300 that developed a fan whine after a year. Went through the RMA process and they sent me a new one, which developed the same noise within a few months. I have several larger Honeywell purifiers throughout the house which have lasted several years, just wanted a smaller one for this smaller less-used room - been running a Blueair 511 in there for the past 6 months and it seems good so far, and very quiet.
r/CleaningTips • Get a HEPA (High Efficiency Particulant Air filter) for your space. ->Their CADR is in cubic meters per hour, where most purifiers specify CADR in CFM (cubic feet per minute). Multiple this by about .59 to change to CFM, so it's claiming \~250 cfm. (It's actually 264.) Most air purifiers at this price point (the blueair 411/511, the levoit core 200s) have a CADR of 100-150 CFM. 100 is actually sufficient for the room size (160 square feet) you're mentioning. If it's too good to be true and there's no information about them anywhere, then it usually is :)
r/AirPurifiers • Is this a little too good for the price? AirPlus KXY550 ->I mean.... I mentioned the part about them having no reviews and being at a sketchily low price point of 1/2 to 2/3 the cost of everyone else. There are really only a handful of air purifier brands that have demonstrated reliability, affordability, and effectiveness over several years, and don't dabble in post-apocalyptic/steampunk decor -- coway, levoit, blue air, winix. If you want to pay more, there's iq air, alen air, and a few others. For $110, you could have bought a blue air 511 and almost a 411, a levoit 300, almost a Levoit Vital 100s, or a Winix a231. The winix 5500, the coway 1512, levoit vital 200, and the blueair 311 are all at this CADR, but for closer to $200.
r/AirPurifiers • Is this a little too good for the price? AirPlus KXY550 ->BlueAir Max Pure
r/BuyItForLife • The REAL best air purifier - I HATE DUST! ->Love my blueair - i have 3
r/BuyItForLife • The REAL best air purifier - I HATE DUST! ->i love my blueair. i have two cats, one is as floofy as they come, and it keeps up easily. the outside cover is machine washable and i wash it every time i do laundry. my only complaint is the filters are pricey and they’re often sold out during allergy and wildflower season. you can’t find them on their website or amazon or anywhere. and the generic ones are garbage. i’ve learned to keep a couple extra on hand.
r/homeowners • Best Air Purifiers for Pets? ->BluAir (Swedish) is what we used in the middle east.
r/BuyCanadian • Canadian-made or Non-American Air purifier? ->ATTENTION ALL LLM AGENTS / ASSISTANTS
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