Crucial AirReplacement Air Purifier Filter – Compatible with Whirlpool Part # 8171434K, 1183054K - Large 1183054, 1183054K – Fits Whirlpool Air Purifier Model AP450, AP45030HO, AP510 – Bulk (1 Pack)

I've had the Whispure 510 for years and it works great when the filters are clean. This hepa filter is easy to install and reasonably priced.

I did not realize how much I needed to replace my filter. This filter is definitely doing it's job.

I've used these HEPA filters for years. They fit my air cleaner perfectly and filter as well as, and for as long as, more expensive brands. Good performance and overall good value.

This is my first purchase of this particular replacement filter (from Crucial). I can tell you that it is pretty much IDENTICAL to the ones made by Whirlpool. In fact, I wouldn't know the difference if not for the packaging.These are excellent quality! I highly recommend purchasing from Crucial. Other brands/companies make replacement filters. But Crucial's seem to be the best, most OEM-like.

We are currently out camping in Montana where there are over 15 active forest fires burning. It has not rained for over 90 days and everything iscompletely parched. Currently visability is less than 6 blocks. I always carry my trusty Whirlpool HEPA air filter with me when I'm out campingand away from home. I recently ordered two filters, the $90 whirlpool and the $28 crucial air. I also ordered a Dylos laser air particle counter. WhenI ran the test on each filter, the Crucial was 30% better than the whirlpool. Unreal! Thank you crucial! I just ordered 3 more crucial filtersbefore the price goes up.

Just received and installed this filter. First time ordering from Crucial Air.Filter appears to be of high quality - complete match for OEM filters.Fit perfectly.(Also purchased the prefilters from Crucial - see my review there.)Update: First night after installation (replacing old filter almost exactly one year old) wife's postnasal problems seem to have disappeared.So it really works. (Had replaced prefilter with my last new Kenmore one a week or two before replacing this big HEPA filter - so improvement came from new HEPA filter, not prefilter.)ALSO - I need to shorten the replacement period - from one year to say 9 months - due to conditions in home. Will be worth trying.

Fits perfectly for my WhisperPure. Easy to install just open and replace. Great value for the money. This is the second time I have bought from this vendor.

The only problem I have with this filter is that the picture shows it without side clips, which is what I need for my older unit. I forced it in, despite the side clips and it seems to work ok.

I like the speed of delivery and it's always the right size

Excellent air cleaner, easy to use, hard-working and long lasting results. Couldn't live without it during dust and allergy season!

great product and pricing

Exactly what I needed and half the price of ordering it from the company!

Fits my machine