This is a five stage air purification system. I did not expect to be impressed due to the quite reasonable price of $50 at Amazon. This air filter starts with a coarse pre-filter, then has a HEPA type filter for particulates like pollen, then a carbon filter for odors and an ion filter and finally a UV bulb as a germicide. I find that quite impressive for such a low cost filter.
The fan settings are high and low. The high is very quiet and the low is almost indiscernible. Personally I sleep better with a little "white" noise so I like the high setting. Of course that means it draws more air and theoretically will give you cleaner air based on volume alone. I also like that there is a pictograph inside the filter compartment showing the correct order of the filters. The instruction set does the same thing but in reality the instruction brochure will be tossed in a drawer and effectively disappear.
The carbon filter is the only one that it is recommended for relatively frequent replacement at three to four month intervals. A four pack of filters can be had for $10.00 so Holmes has kept the consumables reasonably priced. The small size is also a nice feature. 5.9 x 7 x 13.2 inches.
This appears to be an excellent value for the money.
From the vendor:
- Permanent Filtration for hassle free operation
- Incorporates UV technology for germ killing power
- Carbon and PCO filter for odor elimination
- Digital Control Panel, 3 speed settings, 8 hour timer
- Slim design and integrated handle allow flexibility in placing the unit throughout the home; recommended for small rooms
If reviewing a product, it may have been received free of charge. That will NEVER have a bearing on my recommendations.