Honeywell HFD-120-Q QuietClean Air Purifier with Permanent Washable Filters, Medium Rooms (170 sq. ft.), Black

Good product
I love this product, is quite and still working good and it cleans up the air and it helps my allergies

I can breathe inside again (GREAT for pets!!)
I bought this air filter unit in 2015 and have run it just about 24 hours every day since (aside from cleaning and moving). After 6+ years this filter still works great, as long as you maintain it properly and have reasonable expectations.I have severe environmental allergies but live in a house with 3 dogs, 1 cat, and 4 house rabbits that eat hay as a main staple of their diet. This combo resulted in me waking up throughout the night and unable to breathe in the mornings especially. It was a miserable existence.I chose this filter after much consideration and comparison to other Honeywells, ultimately because the filters are reusable. This cuts down on excess waste from disposable filters, and saves money in the long run. The reusable filters are very easy to clean – just remove, rinse, soak in a little soapy water, rinse, allow to dry completely. I try to clean my filters at least monthly, and 6 years later they’re still working. The difference in air quality after just an hour in a room is pretty impressive; the air just feels cleaner and I’m able to breathe like a normal human.Just note this is not a HEPA rated filter, guys. If you’re expecting HEPA grade filtered air, pass on this one and buy a HEPA air filter. I have found this unit works great at removing allergens, dander, animal hair, dust, etc from the air, but it is not as effective with smaller particles like smoke (it filters smoke, but not 100%).I included an image of common airborne particle sizes for reference. The specs on the filter state 1 micrometer as the smallest particle size captured.

Very Effective with Woodstove and Forest Fire Smoke
I have three of these. One is on loan. We have been under a smoke hazard warning for about a month from the huge forest fires around us. Visibility is often less than a mile. Many days, the air is rated in the “hazardous” range. The good news is that we aren’t threatened by fire locally–at least not at this time. These filters WORK! I do have the carbon pre-filters in. I have one running on each floor. The air in the house is.wonderful. Having to go outside to do something is not so wonderful. I bought a third unit rather than call back the one I have on loan because he needs.to be able to breathe as.well. It takes about 24 hours to completely clean the air on a floor–air that was bad enough to make you cough.My original review–I heat with a woodstove. It has been a VERY long winter. There have been no breaks to really get the house aired out. Although I have very little dust, the particles in the little bit of smoke that leaks out were starting to make me cough. I ordered one of these aircleaners and put it next to the woodstove. The difference was noticable within a few hours. I ordered a second one for upstairs. My cough is completely gone. You can hear the fan, but it isn’t an annoying fan noise. It really moves the air. As soon as we get a few warm days, I will be changing the fiberglass gasket on the stove and tightening the stove up. I am sure these cleaners will be just as effective on the spring pollen and the dust of summer.

This is a wonderful machine. The amount of dust the machine picks up that gets trapped in its filters is amazing. Moreover, the internal filters are also charged and help remove smells. We went from dusting practically every day to dusting once, maybe twice a week.The noise level of the machine is low, medium to high, depending on the setting. We put it on medium and we’re happy with it. It is not noticeable when watching movies for example. However, you do notice how quiet things get when you turn it off. The oscillating feature is great and should be used as it sucks in more dust that way.The filters are reuseable. We have a blower than we use to blow away the dust. I have only washed the inner filters once.Overall, we are very happy with the machine and may buy another.

This model is a very big improvement on the HFD-010, which is another Honeywell model using electrostatic filter. The HFD-010 is loud, and its filter is poorly made; it has large gaps in between the filter housing, therefore causing lots of unfiltered particles to enter the blower.The new HFD-120-Q on the other hand, has two newly designed electrostatic filters, all comes with rubber strips on the sides for a better seal. To be fair even with all the seal, trace amount of particle can still be found passing the filter, but compares to the old model it is a big improvement.The new model uses a single button for speed control, and another button for oscillation. The noise is at the lowest on low setting; mostly the sound of moving air would be heard, and the rotor makes minimal amount of noise.The oscillation feature is a good addition for an air purifier; it will clear out stale air pockets around the room, and keeps the air circulating. The noise level is also minimal, unlike some of the tower fan, which produces an unbearable whining sound.The filters do capture quite a lot of fine particles, and they can be cleaned easily through washing. The pre filter comes with two varieties; one is a reusable foam filter, and other is a disposable activated carbon filter. The carbon filter claims to remove some of the odors in the house, however I didn’t notice too much of a change after using it for a while.The new unit might produce a strong plastic smell when is first used, but after a few days it will start to dissipate. There might be trace amount of ozone smell as well, but you have to be very close to the air vent to smell it.Overall, this unit does a decent job on capturing air-borne particles, it won’t out shine the true HEPA units, but with regular cleaning its efficiency will not deteriorate (as all HEPA unit experience), and you don’t have to worry about replacing the filters (if you use the reusable pre filter instead of the carbon one) .