Honeywell Air Cleaner HEPA Permanent Replacement Filter  Product Reviews

"The filter model I have, 18150, requires two of these with no foam spacers. Two of these were less expesnive than the single larger filter I purchased once previously. However, I'd say that two small ones are about a quarter inch too tall, maybe slightly less. The cover still goes on, but not as far down as it should. As for filtering, I estimate that it filters the same as the previous. The "permanence" of this filter makes me wonder why I've been replacing the previous style, since I can see no difference in the filter material."

"Beware, you need at least two, and most air cleaners require 3 of these. And when stacked they aren't as effcient as a large single filter. But if you can't find the larger single replacement filter these will do."

"Listen to Lynn from New England, I wish she had written her review before I purchased these. The 17400 model that I use requires 2 of these HRF-14 filters and 2 foam spacers. The reduction in the quality of the filtered air is very noticeable. (The plastic edges of the 2 HEPA filters touching in the middle + the two foam spacers at the end reduce the total filter surface area dramatically) Also, changing the prefilter is much more of a hastle when you are trying to juggle 4 pieces wrapped by the prefilter instead of one. I suppose you could use heavy duct tape to keep them bound together, but then you would lose even more filtering capacity. The competition's late night infomercials try to demonstrate that the Honeywell (I am pretty sure they show the 17400) is difficult to clean, but because it isn't when using the single HEPA filter, the actors overdramatize and you can tell it. If they had used THIS filter set up in their demo, though, it would have been much more convincing. This may be slightly cheaper in the (very) short run, but in the long run, if you would rather not have to replace the HEPA filter more often and if you want your Honeywell to work at maximum efficiency, use the single filter option instead. "

"I was alittle skeptical buying these. But they seem to be working great!"