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)

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.

Fits the bill. I need to make a custom filter for my 3D printer and the size and thickness is just what I needed for this special project.

Have used these as replacements for my stove fan/vent for a couple years. This pkg the filters are smaller even though I reordered the filters I had last time. Still work great!

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

I have tried different brands of these types of filters, and this brand has worked the best out of the two other brands I have tried. One brand fits VERY tight when sliding the filters into place, but filters okay. Another brand had some sort of mold prevention treatment. That was okay, but I did notice a very faint smell. It wasn't the smell that turned me off. It was the fact that there was any smell at all - meaning that something was going into the air. The whole point is to take things OUT of the air - right? This brand is not mold treated AND it fits really well when sliding the filters into place. I will be buying this filter going forward. I don't really care about the color because it is hidden inside the HEPA unit. [update 8/18/2018] I noticed the main product page shows this product's color as black now. It was pink before, so I don't know if the actual product is now pink or black. It is difficult to find cheaper pre-carbon filters. I have listed a couple below that I have used in the past. These work out to $4.50 per replacement ($17.99 / 4). Even though these are a little more expensive, I like these because they are a little bit more dense then other brands I have purchased. 8-Pack Prefilter for HPA100 Air Purifier Activated Carbon Filter Replacement, 10.7 by 7.4 Inch $17.99 as of 8/18/2018 These work out to $3.75 per replacement ($7.49 / 2). These are a little bit thinner, but also work. The advantage to buying these is that you are only buying what you need (i.e., only 2 air filter changes instead of 4 with the 8 pack), and they are a little bit cheaper. Aftermarket Carbon Filters HAPF60, Filter C, 4 Pack $7.49 as of 8/18/2018 GIVE Reviews - this is my standard for writing reviews [G]enuine - This is a review that is honest, trustworthy with no reason other than to help people in the Amazon family. [I]nformational - This review needs to provide information related to this product in a concise matter. [V]aluable - This review needs to provide value to the reader such that it helps him or her determine if this product is for them. [E]nlightening - This review needs to go beyond product information such that the reader learns something they did not otherwise know. ps. Don't forget to up-vote if you liked this review, or you think this review will help others.

This is my second Holmes air filter and it’s now two years old and i can’t find the filters in any stores. I went through three failed filter deliveries with Amazon (one from Lifesupply which was terrible and none of the filters fit) and then two from a seller who had “genuine” Holmes filters but they both were the “mold capturing” kind treated with the toxic chemicals, which was not what was advertised or what I ordered. I was going to give up and buy an entirely new machine (Honeywell) but then I found these filters and decided I’d give it one more try. I just installed them today and THEY FIT PERFECTLY and they do not appear to be treated with toxic chemicals like the Holmes. The air purifier is in my bird room where there is tons of dander (ridiculous, lung disease causing amounts— for humans, not for them!) and since the birds are extremely sensitive to chemicals they can’t have any toxic crap going through the air filter. So far, so good with these Breathe Naturally filters. Shipping was also super fast and the filters were very nicely packaged. As long as they keep making these, I’ll keep my Holmes air purifier and not trade it in for a Honeywell. But after this fiasco its days are numbered and I won’t be buying another Holmes.

Works well in my Holmes indoor air cleaner. Competitive pricing.

These filters work great and are packaged in a logical way. Three filters to a box is exactly what most of us need and this is a lot better than having to purchase 4 filters (from the manufacturer) and then saving one until the next time, etc. The filters are shipped each contained in a plastic bag with all three inside of a solid cardboard box. This keeps the filters clean during shipping (unlike the OEM filters). These filters seem to be made with a slightly thicker HEPA filter medium, which has no effect on the fit of the filter, but rather allows the filter to do a slightly better job, actually, than the OEM model. Some users have reported that their filter machines are indicating that these filters are "used", but this is NOT the case. These filters are clean and are shipped inside plastic (unlike the OEM model). The reason their machines are indicating that the filter is partially used up is that the machine needs to have the filter change reset button pressed. It is a small, recessed button just inside the closed door that is very hard to see and requires a pen or similar object to press the button.