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Honeywell · humidifier · portable evaporative

Honeywell HCM-750 replacement filter

Use part HAC-700. Replace every 30 to 60 days depending on water quality and usage.

The filter that fits

Maker lists this model

Honeywell Filter B

Honeywell Replacement Filter B

Part number
HAC-700also sold as HAC-700PDQ
How many
1 per unit
How often
Replace every 30 to 60 days depending on water quality and usage

The manual says to place new filters (plural) in the tray but gives no count; Filter B is sold as a set, and one set is assumed here.

Buy Filter B on Amazon

Opens an Amazon search for Honeywell Filter B HAC-700. Check the listing says HAC-700.

See the sources

Does your exact model share this filter?

Honeywell labels several versions of the HCM-750. Check the label on your unit.

  • HCM-750 takes HAC-700
  • HCM-750B same filter
  • HCM-750-TGT same filter

Look-alike models that take a different filter

Other Honeywell top-fill models such as the HCM-710 take Filter A, not Filter B.

Sources

High confidence: the manufacturer names this exact model on a live page. Each line is the page we read and the day we read it.

  • Which filter fits honeywellstore.com Maker's own page checked Oct 1, 2026
    Kaz USA owner's manual (copy hosted on honeywellstore.com), PDF p1 'MODEL HCM-750 Series'; p4 'Replacement Wicking Filter HAC-700 Filter B ... Remove the wicking filters from the filter tray.'
  • How often honeywellstore.com Maker's own page checked Oct 1, 2026
    Page for the HCM-750 (per its URL): Kaz owner's manual, PDF p3: 'Honeywell Replacement Wicking Filter HAC-700 Filter Type B. It is recommended you change your wicking filter every 30-60 days depending ...'
  • What's in it honeywellstore.com Brand's licensed store checked Oct 1, 2026
    'The addition of Protec Antibacterial Treatment decreases the amount of growth and migration of mold'
  • About the brand honeywellstore.com Brand's licensed store checked Oct 1, 2026
    'HoneywellStore.com is operated by eAccess Solutions, Inc., under license by Honeywell International Inc.'
Show all 7 sources

Which filter fits

  1. honeywellstore.com Maker's own page checked Oct 1, 2026
    Kaz USA owner's manual (copy hosted on honeywellstore.com), PDF p1 'MODEL HCM-750 Series'; p4 'Replacement Wicking Filter HAC-700 Filter B ... Remove the wicking filters from the filter tray.'
  2. honeywellstore.com Brand's licensed store checked Oct 1, 2026
    'Fits Honeywell HCM-750 and HCM-750B series humidifiers.' Compatible: 'HCM-750 (HCM750), HCM-750B (HCM750B), HCM-750-TGT (HCM750TGT)'
  3. honeywellstore.com Brand's licensed store checked Oct 1, 2026
    'Honeywell HAC700PDQV1 Replacement Filter B for HCM-750 Series Humidifiers' (marked DISCONTINUED)
  4. honeywellstore.com Brand's licensed store checked Oct 1, 2026
    'HAC-700 is Filter B.' ... 'Availability may be limited because some Filter B packages have been discontinued.'

How often

  1. honeywellstore.com Maker's own page checked Oct 1, 2026
    Page for the HCM-750 (per its URL): Kaz owner's manual, PDF p3: 'Honeywell Replacement Wicking Filter HAC-700 Filter Type B. It is recommended you change your wicking filter every 30-60 days depending ...'

What's in it

  1. honeywellstore.com Brand's licensed store checked Oct 1, 2026
    'The addition of Protec Antibacterial Treatment decreases the amount of growth and migration of mold'

About the brand

  1. honeywellstore.com Brand's licensed store checked Oct 1, 2026
    'HoneywellStore.com is operated by eAccess Solutions, Inc., under license by Honeywell International Inc.'