Filter-Monster - Replacement Air Filter Bundle, Set of 3 Filters - Compatible with IQAir HealthPro Series Air Purifier

Good

The filter system was received and immediately installed. This was a first time use of a used unit, so initial installation was a bit fumbly but went together fine. Initial impressions were that the filters were performing as expected, but had a slight odor. The odor wasn't noxious to me, but i can certainly see how others might find it unpleasant. It was reminiscent of a new car, or a new pair of running shoes.I did have an air quality meter running at initial setup, and it did show mildly increased levels of formaldehyde. Much larger increases of volatile organic compounds (TVOC) were measured, which could have been the odor I was detecting. The TVOCs remained elevated for a period of nearly two weeks, and then began gradually tapering off. At the three and one half week mark, the TVOCs have completely subsided and the system now has no detectable odor.It seems that the filters need to run approximately a month before the TVOCs are completely gone. Now that's happened, the filters are working well to remove pollen from our living areas. This was a good purchase - expensive, but good.

The filters are significantly lower cost than from iQair but the quality is about the same so this lowers the operating costs for this wonderful air filtration system to manageable levels

These do fit the iqair but there is a noticeable difference in quality. I guess you do get what you pay for and these may be overpriced

We live in Hawaii and sometimes have issues with the volcano when it puts sulfur dioxide in the air. It's what we call Vog in Hawaii. This is the best air purifier we could find and it seems to work well. We seem to get at least a couple of years off the filter so I'm pleased with it