ProX(W)

See the AutoModerator comment. Air purifiers aren't good at reducing visible dust or pet hair as both are large and heavy compared to "invisible" pollutants like PM2.5. See the sticky post at the top of the subreddit and our other subreddit resources on dust: I need an air purifier for dust. What sh

Purifiers aren't good at reducing pet hair, if that's a benefit you're after. It's very large and heavy compared to microscopic pollutants like PM2.5. Only hair floating very close to a purifier's intake(s) will be captured. The two Levoit Vital models are definitely better than their Core series. T

Housefresh.com's reviews are useful, because they measure sound and CADR using a consistent methodology, allowing you to compare among units. They've tested the three you mention. I'd suggest making a table of CADR and noise at each fan speed from their reviews. That's what I did. Based on a quick l

For 600 ft^2, and assuming 8 foot ceilings, you've got a volume of 600*8 =4,800 ft^3. To get 5 ACH, you need a CADR of 4800/12 = 400 CFM. There's no single purifier that gives that CADR without being loud. The closest is the Smart Air Blast MKII, which, according to Housefresh.com, is 41.9 dBA at 37

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,

Just an FYI: many purifiers are good at removing particulates or gases/vapors/odors/VOCs, but not both. Wildfires often produce high concentrations of gases which require many pounds of activated carbon or other sorbent media. Chemically untreated sorbents do not have high removal capacities for all

With a 150 ft^3 bedroom, you need a CADR of 100 to get the recommeded 5 air changes per hour (assuming 8' ceilings). You could put something like a Coway AirMega ProX in the bedroom. On silent mode, I measured it at a CADR of 170, and there's nothing wrong with overkill. And it's probably quieter th

I appreciate the upvote. I was blissfully unaware that down voting was even a thing here. I am pretty new to this forum and hadn't noticed. Kindof sad that I know that now! I appreciate all your calculations.. I have done much of the same trying to find the right combo of dB, CFM, and cost. And yeah

It has the highest CADR while being quieter than your two options listed. I have one in my living room and it’s great, although it energy inefficient. It’s essentially just a modified Chinese filter fan with a grill. I also have an IQair healthpro plus and wouldn’t recommend it very highly. It’s jus

See the AutoModerator comment. Purifiers aren't good at reducing visible dust particles as they're large and heavy compared to "invisible" pollutants like PM2.5. An even stronger argument could be made for dog hair. If you don't have one already, I'd get a good quality bagged vacuum cleaner with a H