LUFTRUMAir Purifier Replacement Filter, AC400 H13 True HEPA

Great filters, great air purifier too. But no longer on Amazon. Now what to do. I’d buy another machine and extra filter if back on Amazon.

the first filter that came with my unit was perfect this refill i bought the corner was damaged and hard to put into the unit, my fear is it went in but will it come out - answer is yes, but now i have to shut it off until a new one can arrive.. for $90 dollars each refill it gets pricey to replace once something is damaged and cannot be put back in what a waste of $90, Do not recommend this product due the costly replacement filters and out of stock all the time. I bought another until, mind you less expensive, working just as good as this pricey one and the replacement filters I got from the app that comes with my unit for $72.99 for THREE which delivered yesterday so I have three backups which should last for months. bad purchase for sure and now they have the filters back in stock for 89.99 be aware this is a rip off compared to my new LEVOIT machine 200S which has been wonderful and running perfectly.

I have use this new air purifier AC 400 for approximately six months went to purchase a replacement air filter and they are out of stock. I removed the pre-filter which is attached to the main filter and the main filter is perfectly fine so I will look for replacement pre-filter or clean the one I have, I would recommend not buying this product.

I bought two filters for future replacements for the air purifier because all of the other sources that I checked were "out of stock". I use the air purifier in a semi-finished basement where we spend a significant amount of time. The unit itself has three-speeds, but 1 and 2 are about the same and are likely too low to be very useful for the size of the space. Because these filters are quite costly and I run the air cleaner on high-speed, I have it operating on a mechanical timer in order to prolong the filter life. The particulate matter count is very low, thus, a continuously operating purifier is both a waste of power consumption and filter life for this specific application, me thinks.