Search·Holmes

When you already know your purifier’s model number, this page shows the replacement filter numbers we match to it—then you can compare with your old filter and shop.

Brand

Holmes

Model HAP9424

Holmes HAP9424 Air Purifier

Series: AER1

These filter part numbers are matched to this air purifier model in our reference. Compare the OEM number with the label on your current filter or your owner’s manual before you buy.

Your replacement

HOLMES-HAPF30

HAPF30 / HAPF300 HEPA filter

Replace about every 6 months

OEM / manufacturer catalog (keyword lookup)

All details for this part (notes, compatible models, buying options when listed)

Notes & next steps

Search again if you need a different model or part number.