The Holmes Group HAPF600PDQ-U Replacement HEPA Filter

The holmes filters are great. They last a long time considering i leave it running 24x7. Easy to replace.

Too bad my purifier takes two of these, very pricey. But I'm able to save on the tax and it's a little cheaper than in the store. It also helps my Holmes unit not have that burning rubber smell, when I replaced the filter. Guess it really needed to breath easier?

It was time to replace the HEPA filters in my unit - it runs 24/7.

These were the exact manufacturer models to do so and it was super easy. I have vacuumed the original set but you could see the "stuff" they had pulled out of the air - and before the little light told me to replace them (by a couple days). Now good to go for another year.