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

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

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

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

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