Air Purifier Filters

Core 300-RF is the code printed on the cartridge you are pulling out, and this is the genuine Levoit part carrying it. The listing states it is for the Core 300-P, that it is AHAM Verifide, and that it includes activated carbon. Matching the code beats matching the description of the machine, because Levoit ships several Core models with cartridges that look alike.

Best forA Core 300-P where you would rather not think about whether a filter fits.

The AP-1512HH takes two different filters, and this listing states both are in the box: a HEPA filter and a deodorization filter. The listing also names the 200M. Buying the pair together avoids the common outcome of replacing one layer, closing the machine, and finding the other layer is the one that smelled.

Best forA Coway AP-1512HH being serviced properly rather than half-serviced.

Stated as the official replacement for the PuroAir 240, and it arrives two to a box. The listing describes a 3-in-1 HEPA filter. Two cartridges per order is the practical difference here: the second one sits on the shelf and the next change happens the day the indicator asks rather than the week after.

Best forA PuroAir 240 owner who does not want to reorder every few months.

The genuine cartridge for the Core 400S-P, which is the larger machine in the Core line and takes a correspondingly larger filter. The listing states AHAM Verifide status and activated carbon. Core 400S-RF and Core 300-RF are not interchangeable regardless of how similar the packaging looks on the shelf.

Best forA Core 400S-P that needs the part the machine was built around.

The genuine cartridge for the Core 200S-P. The listing states AHAM Verifide status and activated carbon, the same wording used across the Core range, which is exactly why the number is the thing to read. A 200S-P and a 300-P are different machines with different cartridges and near-identical filter descriptions.

Best forA Core 200S-P where the cartridge code has already been read off.

The genuine cartridge for the Core Mini-P, the smallest machine in the Core line. The listing states AHAM Verifide status and activated carbon. Small machines tend to live on desks and nightstands where they run constantly, so the schedule matters more here than the size of the cartridge suggests.

Best forA Core Mini-P on a desk or a nightstand.

FLT4825 is the code, and this listing names seven machines it fits: AC4825, AC4300, AC4850, AC4880, AC4900, CDAP4500 and AP2200. That is an unusually long stated list, which makes the code easier to shop but also makes it worth confirming your own model against the listing rather than assuming. The listing claims removal of 99.97% of pollutants; that figure is the seller wording and is reproduced here as such, not as a result.

Best forA GermGuardian tower whose model number appears on the listing exactly as printed.

The genuine Blueair part for the Blue Pure 411+, and the listing states both layers in one piece: particle filtration and activated carbon. Blueair filters are not cartridges in the Levoit sense — the machine body is the filter housing — so the shape has nothing in common with anything else on this page. The listing names one machine, and that is the one that appears here.

Best forA Blue Pure 411+ whose owner wants the genuine part and no guesswork.

The genuine part for the larger Blue Pure 211+, and the listing states more than most on this page: AHAM certified, HEPASilent dual filtration, and a genuine carbon layer for odors. The 211+ is a bigger machine than the 411+ and takes a bigger filter, which is why the two Blueair listings are kept apart here rather than treated as sizes of one part.

Best forA Blue Pure 211+ in a living room where odors matter as much as dust.

A genuine Frigidaire part, listed under the PureAir name with the part number FRGPAAF2. The listing states very little beyond the part identity, so this page states very little too. What matters is the part number: the AF-2 code is the thing to match against the machine documentation, not the word PureAir, which Frigidaire uses across more than one product.

Best forA Frigidaire appliance whose manual calls for the AF-2 part by number.

The AROEVE-branded filter for two AROEVE machines, sold as the standard version in a pack of two. The listing names the MK01A and MK06A, and gives their older names, MK01 and MK06, alongside. The standard version is a distinction the listing makes itself, which implies other versions exist — worth matching against what came out of the machine rather than assuming.

Best forAn AROEVE MK01A or MK06A whose manual calls for the standard filter.

A third-party Core Mini cartridge, two per box, whose listing states compatibility with the Levoit Core Mini-P and mentions included fragrance sponges. The compatibility statement comes from the seller. The fragrance sponges are an addition the genuine part does not have, and whether that is a feature depends entirely on whether anyone in the room wants scent added to the air.

Best forA Core Mini-P owner comfortable with a seller compatibility claim and interested in the scent option.

The plainer of the two third-party Core Mini listings: two cartridges per box, and a stated compatibility with Levoit Core Mini-P purifiers with nothing added. No fragrance sponges, no extra descriptions. The compatibility statement is still the seller speaking rather than Levoit.

Best forA Core Mini-P where a plain compatible cartridge without extras is what is wanted.

A third-party cartridge whose listing states compatibility with two Levoit machines, the Core 300-P and Core 300S-P. The compatibility here is the seller speaking, not Levoit. It sits on the Core 300-RF page beside the genuine part so the two claims can be read next to each other, and it is listed under the models the seller names rather than the whole Core 300 family.

Best forA Core 300-P or 300S-P where the seller compatibility statement has been read and accepted.

A third-party cartridge, two per box, whose listing states compatibility with the Levoit Core 200S and 200S-P. Until this listing arrived the Core 200S-RF page carried only the genuine part; now it carries one third-party claim beside it. The claim comes from the seller. Read the two model names against the machine on the shelf, not against the Core family name.

Best forA Core 200S or 200S-P where the seller compatibility statement has been read and accepted.

A third-party set whose listing states compatibility with the Coway AP-1512HH, sold as a 2-pack. The AP-1512HH takes two different filters, and the genuine set on this site states both. This listing states a 2-pack without spelling out on the title which layers are included, so the box contents are the thing to check before treating it as a like-for-like swap. The compatibility is the seller speaking.

Best forAn AP-1512HH owner who has checked what the pack contains and accepted the seller claim.