Airmega 350

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

Well it depends what setting is she running it on, how far away is it, how is it angled ? Etc. As I have a box fan next to a Levoit 300 I am looking at now. Apparently box fans can be 45-65+ decibels depending on low/medium/high The Levoit 300 got 64 decibels in a comparison test in the video below.

Wait until the Coway Airmega 450 goes on sale. This unit moves a ton of air if you can deal with the noise.I picked up a white one for about $350 around Christmas.I think the 400 was on sale a while back for $349.

I've linked either UK- or USA-based sites for the specifications. Don't know which models you can get. Coway is usually one of our first recommendations. The Airmega 150 is good for very small to small rooms. The Airmega Mighty and Airmega Jet work for medium sized rooms. The Airmega 400 is good for

I have several IQAIR Healthpro purifiers.4 of the compact model and 2 of the model with the carbon filters. I also have an Austin Air and 2 Coway Airmega 400's. Recently I bought the 350 and the 450. The IQAIR purifiers are the best quality wise and offer the better filters which filter down to.003.