Fits checked Oct 1, 2026 · How we check
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Holmes · humidifier · portable evaporative

Holmes HM3501 replacement filter

Use part HWF75. Interval not published by the maker.

The filter that fits

From the maker's archived page

Holmes Filter D

Holmes HWF75CS (D) Humidifier Wick Filter

Part number
HWF75also sold as HWF75CS
How many
1 per unit
How often
Interval not published by the maker

Holmes does not say how many wick filters this model takes; one is assumed here, so check the old filter before ordering.

Buy Filter D on Amazon

Opens an Amazon search for Holmes Filter D HWF75. Check the listing says HWF75.

See the sources

Look-alike models that take a different filter

Holmes uses letter-coded wicks (A HWF62, B HWF64, C HWF65, D HWF75, E HWF100, F HWF23); look-alike models often take a different letter, so match the model number.

Sources

Medium confidence: from an archived manufacturer page, a licensed brand store, or a live manufacturer page that names a sibling variant rather than this exact model. Each line is the page we read and the day we read it.

  • Which filter fits web.archive.org Maker's archived page checked Oct 1, 2026
    Holmes HWF75CS (D) page: Works with Holmes® humidifiers (archive.org 2015-01-28): 'HM3500, HM3501, HM3600, HM3656, HM3650, HM3640, HM3641, HM3655'
Show all 2 sources

Which filter fits

  1. web.archive.org Maker's archived page checked Oct 1, 2026
    Holmes HWF75CS (D) page: Works with Holmes® humidifiers (archive.org 2015-01-28): 'HM3500, HM3501, HM3600, HM3656, HM3650, HM3640, HM3641, HM3655'
  2. web.archive.org Maker's archived page checked Oct 1, 2026
    Archive.org 2015-01-28: 'Holmes® humidifier filter part number HWF75 or HF222'