75i

Thanks for that info. I did look up sound pressure levels and answer online answer was it was the same as decibels, although that might not be accurate. I may try the Everest Air. Surprised to hear that Coway Pro X is quiet at that higher cfm. Will check it out. I recently purchased an Alen 75i from

Yeah, I could get 2 x 45i for the same price as 1 x 75i at current sales, and the 2 x 45i would give me more CADR with less noise, since 2 x 45i at speed 1 gives a CADR half-way between speeds 2 & 3 with 1 x 75i (and better coverage, since I could put them at two different locations in my room). Spe

You may want to investigate a whole house air filtration system if you indeed have the budget. Otherwise your options are basically something like AirPura, it filters both air and uses large amounts of carbon to get rid of smells.. https://www.airpura.com/ An alternative would be something like the

There's literally only one aiir purifier that's quiet and it's the Alen Breathsmart 75i. I've had dozens of different brands and that's the only one that is whisper quiet even on full blast, literally nothing else compares. They aren't cheap but if sound is a concern and you want a air purifier that

I have an Alen 75i, its 100 cfm on speed 1 and 185 cfm on speed 2. I cant hear speed 2 unless I put my head right over it. And when you need the cleaning power it's 375 cfm on speed 5 which still isn't loud. Might be too expensive for you, but they do sell refurbished at Alen website and I've seen t

I've wanted Alen for years. Got the 75i and 35i. 35i was fine, but not that impressed with odor removal and I have the ultimate filter. Small kitchen and if I cook a burger, the smell is still there in the morning-even on turbo. 75i makes a knocking sound even on the lowest speed and that is right o

Yup, I found the same thing with my Winix 5510: it's only non-intrusive on night mode, which only gives 56 CFM. At 380 ft^2, and assuming 8' ceilings, you need 253 CFM to give you 5 ACH. There's no single air purifier that delivers that quietly (the Smart Air Blast Mini Provides 272 CFM on speed 1,

Oops sorry I misread where you said budget was $250! I'll leave this here just in case it's helpful for someone else down the line. Looked up the C545. Claims it cleans 436 ftsq every 15 minutes (4x per hour). That would be on high speed. There are a few other purifiers that have better cleaning per

Best overall: IQAir HealthPro Plus This is widely considered the gold standard for portable whole-home air cleaning. It uses HyperHEPA filtration that captures extremely fine particles, making it ideal for allergies, smoke, and asthma. It’s powerful, built for long-term use, and consistently ranks a

Best overall: IQAir HealthPro Plus This is widely considered the gold standard for portable whole-home air cleaning. It uses HyperHEPA filtration that captures extremely fine particles, making it ideal for allergies, smoke, and asthma. It’s powerful, built for long-term use, and consistently ranks a