2 Pack for Instant AP300 Filter Replacement, True and Activated Carbon Filter, Compatible with Instant AP300, Compare to F300 Filter

Perfect replacement filters for the Instant air purifier. No complaints. Will purchase again.

I'm so glad there is finally an alternative than buying the original filters because they are so overpriced. For the price of one you get two in a pack that basically work pretty much the same. The one thing that I did notice was that the threading and the smaller detail of the filter weaves look a little bit larger than the regular one.Since using the filter it fits the larger In my Instant HEPA Quiet Air Purifier which is the larger sized one. The purifier still works the same and still filters the air when there's an odd smell as well. Highly recommend as an alternative to the original ones.

Works exactly as original filter. Great price!

I use the Insta Air Purifier (large AP300) and these fit it perfectly and are much more affordable than the name brand. No issues whatsoever, and they gather a ton of dirt! We have a busy boat shop, I keep this going full time in the office, none of us have had any viral illnesses since we got it over a year ago.

These were too big for my machine. My measuring mistake!!!! Reordered ones that did fit!

I'm very happy with my Instant AP300 Air Purifier, although sadly I do not believe the company makes or sells it any longer. I've had mine for a few years and it is still working great.Thankfully we can still purchase the filters. The filters tend to last anywhere from 6 months to a year, and when your "change filter" light goes on, it's time for a new one. The official replacement filters are $58 on Amazon, which is a good chunk of change.These filters are "generic" replacements, but they are less than half the price of the official ones. On the outside they look basically the same, and they fit into the AP300 (very easy to install). The question remains as to whether the inner filters are exactly the same. Without cutting these open and examining each layer, we have to give the benefit of the doubt that they are indeed clones.At first I thought the cloth layer on these generic filters was flimsier and more porous than on the official filters because I could see right through to the slats of the HEPA layer. But, when I looked at the picture of the official AP300 filter that I bought for $58, it looked exactly the same.The real test is going to be when I use one of these for a while and see how long it takes before filling up. My official filter is still good but I removed it and put one of these in to test it. It is working just fine so far, no differences that I can tell. I am going to give it some time and when or if I have more to report I will circle back with any updated info.Update 12/17/2023: Well the "Replace Filter" light came on today which was surprising as it had only been 2 months. I removed the filter and cleaned it by wiping it in a downward direction over a garbage pail. It had collected a clot of dust! After that I reinserted it and then you need to press the "replace filter" button for 3 seconds. So it is working again (better I'm sure) and things seem to be okay.Will continue to monitor it's performance to see if they last at least 6 months. Until then, these appear to be a good alternative to the pricier, brand-name filters.

I like that I got two filters so I won’t run out.

I don't understand why they put such a small amount of carbon in these. Carbon is probably the least expensive material in this filter, but they really skimped on it. The carbon stage is the one that removes odors, so you can expect this to not remove odors as well as other filters. As for particle filtration, this filter performs quite well. I used a particle counter on the output, and it catches nearly everything from 0.3um (3 micron) particles, to 10um. The measurements are mostly zero, with an occasional 2 or 3 reading on the smaller particle size. For reference, the input room air measures 219 on the 0.3um particle count, so this truly is catching it all. Having said that, filtering odor is important too, and they really should have put more carbon in this.