🌬️ Holmes Group Odor Reducing Carbon Replacement Filters - Ultimate 4 Pack for Cleaner Air, Black, 4 Piece - 1 Pack Review

A little difficult to insert as it got smaller and kept falling down instead of sticking to the pins at the end.

For the price, if you're complaining about having to trim a few edges, go home and complain about your first world problems. They work; this is important.

The two Velcro strips provided are not enough for all 4 filters. You can maybe get two of these, maybe. Also, this does NOT replace the washable pre-filter, it is glued to the back of the replacement HEPA filter.

List our air purifier model HAP9413 in Revain listings. There is a picture of our model HAP9413 on the packaging. On the side of the box is our HAP9413 model. So of course we had to cut 3 of the 4 filters to cover the same area as the filter that came with our air purifier.

As you can see it is not compatible. It's a bit smaller than the one that comes with it, but unfortunately I have to get it to work. I've been looking for the right filter for this thing for too long to return it, everyone in my house has allergies. But you should know that it's not the same at all and if I wasn't so desperate I would return it.

You really need to make sure it fits your filter and in my case I had to tape the cap on to keep it from popping out because it was already tight with the they only fits inside filters. But with this black filter on the Aero1 filter I had to glue the cover to the base to keep it from popping out during use. Otherwise I think it's great. I haven't smelled any odors in the room it's used in and hopefully it does the job.

It is smaller than the carbon filter that came with my filter. Does not sit tight when installed. I ended up leaving the old charcoal filter on top and slipping the new one underneath. Fixed, but otherwise the activated carbon filter moves. It comes with 2 tiny velcro straps which I think could help keep it in place but it wasn't worth the effort and there wasn't enough velcro for all 4 filters. I think this will work well enough, but not what I was hoping for.