Don't go by the light on the your Honeywell unit to tell when it's time to change the filter because the manufacturer wants you to change it as frequently as possible. When you find that the flow of air has slowed down and dust in the vicinity of the unit tends to collect more, then it's time to change the air filter. Also, vacuuming the outside of the filter may prolong the life. I vacuumed my HEPA and found that there was an increase in air flow afterwards and less dust collecting around the unit.


Wait a second...!   January 26, 2004
30 out of 36 found this review helpful

This is not so much a review as a cautionary note.

I've done a lot of research on filters and the such since my son tested positive for exposure to lead.

Both of the reviews of this filter (I have this or a similar Honeywell which is great but I am not sure which model.) Anyway, both of these reviews mention vacuuming the filter(s) to extend the useful life of the item. IF you are using a HEPA filtered vacuum, and only if you are using a HEPA filtered vacuum, should you think of this. But the cost of these filters is not so great that this makes much sense.

If you are not using a HEPA filtered vaccum, than all you are doing is sucking the stuff you don't want to breath out of the filter (which is what you bought the machine to do in the first place) and blowing it back into the air (which is what you boght the machine to prevent.)

Basically, the few bucks you save is not worth the risk.


Stick to Honeywell for air filters.   November 5, 2009
Chen (TX)
5 out of 5 found this review helpful

The first Honeywell air filter HEPA pre-filter I ordered was through Amazon and its site that sounds like a drug store name. It was the wrong filter and it would have taken two that size to accommodate the air cleaner it was supposed to fit, but it was priced like the ones twice its size. It arrived in a box that looked very very tired. My thought was that, in addition to the box, the filter might have been well traveled, too, because it seemed like a deceptive practice. I sent it right back where it came from without even opening it, as well as the two free sheet outer filters to their source, but my credit card has not yet reflected a refund and it has been about two months.

Still needing a filter, I went to the Honeywell website and ordered the proper filter and it arrived faster and is working like a charm at a considerable discount compared to stores, if you can even find them. I would not use the other company ever again but had a good experience with the Honeywell Co.


replacing a HEPA filter in your air cleaner   October 8, 2007
Shirley M. Bild (Clayton, MO United States)
2 out of 2 found this review helpful

This fits my air purifier just fine & was easy to install. Check the numbers on you machine before ordering a replacement filter to make sure you get the right one. It works so much better than the old filter that we had used for several years. Be sure to get the pre-filters (quite inexpensive) too & replace those every few months to make the HEPA last longer.