Fits checked Oct 1, 2026 · How we check
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Honeywell · humidifier filter

Honeywell Filter B (HAC-700)

Honeywell Replacement Filter B. Part HAC-700. Replace every 30 to 60 days depending on water quality and usage. Fits 1 model and their listed variants.

Buy Filter B on Amazon

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

Fits these models

Part numbers

Genuine part
HAC-700
Also listed as
HAC-700PDQ, HAC700PDQV1
How often
Replace every 30 to 60 days depending on water quality and usage
What is in it
wicking filter (Protec antimicrobial treated)

Sources

  • 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'
Show all 6 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'