Crucial Air Replacement Air Filter with IDF Filter - Compatible with Honeywell HFD-120-Q Odor Neutralizing Air Purifier Filters, Filter Model - (2 Pack)

Fit very snug in my air purifier Honeywell quiet clean HFD 120-Q. Did not have a bad chemical smell as described in other reviews. I recommend this product

As others have stated these are not an exact copy of the Honeywell IFD filter. That one is permanent but like others have also stated can't be found really anywhere. So these don't have the metal connectors and the electrostatic properties of that filter. But that permanent filter will break or cease to be as efficient and in my case with the humidity of my apartment, rust. In the case of the connectors, rust until they snap off making any advantages relatively useless anyway.These things replace those rusted broken "permanent" filters (which worked well when they did work originally) into a more traditional air filter. I'm not sure the alert light will even work anymore, but I think I'm okay with buying these replacements every year or so for now rather than buying a whole new type of filter to replace the HFD-120-Q.

like

size is off a little, but they work fine and are doing a great job

The sizing doesn't match. You can squeeze it in, but every time you open it'll fall out. Pain to install, disappointing. I have HFD-120-Q

The fit is good, they seem to work fine, but they are made in China and if I could find some that fit and were made elsewhere I would get those.

A cheap knock off. Too big but that’s not the problem. They are NOT hepa. Plus the power is lacking big time. Fool me once….

Will order again