Model compatibility ledger

Medify Air MA-40 replacement filter

Use this model page to match the purifier body label to the OEM filter SKU, compatible alternatives, sizing notes, and retailer listings before ordering.

OEM filter SKU

MA-40R

Replacement interval

Every 6 months

Annual filter estimate

$90-$180

OEM filter first

Medify MA-40 Replacement Filter

Large-room Medify purifier.

Model numbers: MA-40, MA40
Aliases: Medify Air MA40
Dimensions: Cartridge sized for MA-40 purifiers.

Last reviewed 2026-05-29. Match both purifier model and filter SKU because retailers often group similar cartridges together.

OEM and compatible filter comparison

OEM entries are shown first. Compatible alternatives are not manufacturer-approved unless marked OEM.

Check	OEM filter	Compatible option
Manufacturer-recommended filter	MA-40R · Medify MA-40 Replacement Filter	MA-40R · Medify MA-40 Replacement Filter Cartridge sized for MA-40 purifiers. Annual estimate: $90-$180.

Retailer options for MA-40R

Amazon

Medify MA-40 replacement filter

Varies by listing

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Price note: Check retailer listing for current price.
Availability note: Use the SKU and model notes here to confirm fit before checkout.
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Check retailer listing

Verify the purifier model and filter SKU on the retailer page before ordering.

Medify Air

MA-40 replacement filter