Pros: robust cleaning

Cons: Kind of loud, but as a result decent makes decent white noise machine

Pros: After a week of use I noticed there was a lot less dust in my room Since I have a lot of electronics there, it accumulates fairly easy.

Cons: It's a cheap unit so I wasn't expecting anything outstanding, but after a full week of use, I started hearing a spark coming out of it when the ionizer was on.

Other Thoughts: I contacted Honeywell via their website regarding this defective unit and I got not reply from them so I am going through Newegg RMA now.

Pros: Easily removes smoke very quickly. Filters are cleanable.

Cons: A little loud.

Pros: It cleans the air - especially dust.

Cons: The noise gives me headaches. I can't hear the TV or anyone talking to me and my hearing is just fine! Even the low setting is probably like the high on other brands.

Other Thoughts: I wish I had never bought it.

Pros: Compact, good output, not too expensive

Cons: Noisy on high setting

Other Thoughts: Bought this to combat the forest fire smoke plaguing our area this summer. Seems to work well when smoke seeps in. Fan is noisy at higher setting, still audible at low. But low is tolerable, and puts out enough to work. Arrived in two days with free shipping!

Pros: Adequately powered for the indicated sized room. Washable prefilter and vacuum-able HEPA filter will save money. Compact enough to hide on a shelf in the corner of the bedroom. The low setting provides good white noise at night in an otherwise uncomfortably quiet room. The ionizer does seem to freshen up the room which can become stagnant since I do not open the windows.

Cons: None to report.

Other Thoughts: This air purifier has been a sinus saver. I no longer wake up in the morning feeling stuffy and I sneeze considerably less. After the first clean-out the proof was in the filter; it was completely saturated with dust. This machine works. I run it on high with the ionizer on while at work and switch it to low with the ionizer off (bright light) during sleep hours.

Pros: It cleans air

Cons: it is loud even on low setting, on high setting your neighbors dog will start barking, its a joke, but it is really loud

few minutes after Ionizer is working head starts to hurt. use ionizer when you leave the room.

Other Thoughts: I got it because I found a little mold in my bathroom, wanted to get something that would clean air after mold was chemically cleaned and removed.
It's likely if did nothing.

Pros: Cleanable filter ...

Cons: The lowest setting is like ... a medium in all honesty. I wish there was a setting a tad lower to cut down on the noise, it's a bit too much when sleeping, I resorted to putting it across the room ... which isn't that big in the first place. It has a slight whine noise at the lowest setting, I don't know if that's normal or not, but I'm getting used to it.

Other Thoughts: Cheap, washable filter.

Pros: First, I'm very happy with this product. If you live in Chernobyl or Fukushima this unit may be a bit less than you need. If you just want to keep the dust away from the bedroom computers, it's fine.

Cons: Has no one but me noticed that the Honeywell HHT011 and the Honeywell 16200 are the exact same machines at different prices, the difference being removable vs permanent filters. If you check, the filters seem to be the exact same size. They recommend vacuuming the permanent filter. I've bought the one with the permanent filter. I'm going to buy one of the replacement filters and if it does fit, I'm going to try vacuuming it also. Marketing. That's the name of the game.

Pros: Cheap, HEPA, small and easy to place.
And yes, it does its job.

Cons: You can't buy replacement filters for it. The manual tells you to vacuum the paper filter. Say what?

Other Thoughts: Also, it is rather loud. At the lowest setting, it prevents me from sleep two rooms away, so daytime use only, at least for me.