GermGuardian Air Purifier with HEPA Filter, 5-Speeds, Timer, Removes 99.97% of Pollutants, Covers Large Room up to 743 Sq. Foot Room in 1 Hr, UV-C Light Helps Reduce Germs, 22″, Gray, AC4870

I’ve owned a few air filters and am currently running one in an upstairs bedroom. I’d been thinking about getting another one and knew what I wanted and didn’t want in an air filter. I didn’t want a tall, towering one nor something like the boxy Venta, an air washer / filter. I don’t need something that will add moisture to the air, but rather a unit that will remove impurities from the air. This Guardian was exactly what I was thinking of. It has everything I wanted in an air purifier, plus some. When I unpacked it, there was very little to do save remove a bit of plastic from the wall plug. The filter was already installed, but I removed it to see how easy it will be to change it. It won’t be at all difficult, a task that will have to be done every few months. It does have a HEPA filter as well as a pre / charcoal filter, which is standard. I found that these do fill up with a lot of dust and dirt. They not only get impurities out of the air, but dust, dander and pollen. There’s a timer I can use that can be easily set from one to eight hours. I tend to leave my other air purifier running 24 /7. There are five speed settings I can select from. When I on the highest, I found the unit to be a little loud. It will have to be turned down or off in order to sleep. There’s no sleep mode with this unit. Changing the filter, which should be done every six to eight months, is dependent on the environment of one’s household. There’s also a UV bulb that will eventually need replacement approximately once a year. The cost, I’ve discovered, is not in the unit, but rather the replacement of the filters. I expected to find the same with this air purifier. Comparatively, the cost is excellent at under $110. A very good air purifier that’s worth investing in.