Bests & Worsts Reviews from Amazon

I personally suffer from severe allergies and get great relief when I have good air purifiers in the locations I live (3 of them) and in my offices (2 of them). Given that there are so many locations, I have taken the time to explore Amazon recommended air purifiers. Starting with the old school Honeywell units (top rating from Consumer Reports) to the ones rated highly here. I have the Winix units, the honeywell units as well as the upright Germ Guardian and Therapure units. So here is my summary. As CS says, most HEPA filters really only work if you have the units on the highest speed settings. This is totally true if you really suffer from allergens. If it's not on the highest setting, the particles are not going to make it into the filter. That being said, this unit has a very weak fan and does not move much air at all. It's quiet and built well I will give it that. But it is by far the weakest of all of the air purifiers I have. So I think people should know that this is meant for a SMALL room. Like bathroom or a very small bedroom at best. It does a good job, but anything bigger than 10X10 room and this thing it totally overmatched. Pros: Quiet, good construction, easy to remove filter Cons: Weak fan, hardly covers a small room. UPDATED: The fact that Amazon has make this filter an "Amazon Choice" is pathetic. Since purchasing 2 of these 5 months ago I have also gotten the new style Honeywell units (look more like this and less like a big cylinder) and I love them. They are more expensive but move 10X the CFM and do such a better job.