Breathe Naturally - Hapf600 HEPA Carbon Filter Replacement for Holmes Air Purifiers - High Efficiency Carbon Air Cleaner Filters - Compatible with Holmes HAPF600 Series - (4 Pack Carbon Filter C)Compact by Design (Amazon-developed Certification)

These filters worked great in my Holmes purifier they fit just like the originals and seem to do a solid job at reducing odors and keeping the air fresher around the room for the price I think it’s a really good deal especially with four in the pack so I don’t have to worry about running out anytime soon they showed up sealed and clean and I had no issues getting them installed I’d definitely buy these again when I need more.

As soon as package arrived, I immediately put it to use. It made a immediate difference in my air purifier. I cut one pad into 2 inch strips and placed in my air purifier inside air filter. I noticed a good difference. Product is worth the money and it's up to my expectations. Thank you, Breathe Naturally

Not the right thing for what I needed, but they seem good quality for the right use

I use them for the top of my litter box and they work very well

I moved into a cute bungalow that hasn’t been deep cleaned or kept up in years. It had an “old house” scent that wouldn’t go away no matter what I cleaned.After receiving this I installed it on the ceiling fan blades and in the exhaust above the stove.The house feels and smells so much better!

We needed a filter for the grid behind the bathroom fan--which kept sucking up dust that would clog the motor. We took two of these filter, cut them to get support from the ceiling/grid, and they are keeping dust out of the motor. We can easily take them out and clean or replace them as needed.

Perfection!

Holmes stopped making the filters for my air purifier as well as the hepa filters which left me stuck and like now what. Found a seller for the hepa filters which I'm am very pleased with but carbon filters I've ordered from other sellers were see through or flimsy and didn't fit right. Can't TELL you how happy I have been with these. Prior to purchasing I read the reviews and the positive ones were spot on. The carbon filters are thicker, denser, and fit perfectly and no strange odors or smells. The holmes carbon filters with baking soda weren't anywhere near the quality of these in my opinion. I'll continue buying these from now on.A possible tip is that I use the brush tool on my vacuum and run it over the filter to clean off any dust and gunk that has collected to extend the life and seems to work well.