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Honeywell HAC-504 Replacement Humidifier Filter

Retail: $19.99
You Save: 15%
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FiltersFast HW500 Replacement for Honeywell HAC-504 Wick Filter

Retail: $19.99
You Save: 25%
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2 Months
Filter Life
2 Months
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Prevents Mold & Fungus
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Alleviate Cold Symptoms
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Product Information
Honeywell HAC-504
FiltersFast HW500 R

The Honeywell HAC-504 replacement HEPA cool mist humidifier filter reduces contaminants and minerals in your water to prevent airborne pollution and humidifies the air. The ProTec antimicrobial treatment prevents the migration and growth of algae, mold, bacteria and fungus to keep the filter working longer and prevent the spread of disease causing spores. Depending on your water quality the discoloration experienced with your Honeywell HAC504 filter is normal. For optimum performance and cost efficiency, it is recommended that you replace your Honeywell Humidifier Filter every 2 months.

Honeywell HAC-504 Filter Specifications:

  • Part Number: HAC-504
  • Filter Life: 2 months
  • Dimensions (LxWxH): 3-3/4"x5-3/4"x9-1/4"
  • Protec treated filter inhibits up to 99% of mold growth
  • Antimicrobial treatment helps prevent the growth and migration of mold, fungus and bacteria on the filter
  • Removes minerals and pollutants from water
  • Dry-Lift handle helps to keep hands dry and clean while changing your filter

The Honeywell HAC-504 Replacement Fits The Following Models:


  • HCM-300 Series: HCM-300T, HCM-315T, HCM-350
  • HCM-500 Series:HCM-530, HCM-535, HCM-540, HCM-550, HCM-560, HCM-551
  • HCM-600 Series: HCM-630, HCM-631, HCM-635, HCM-645, HCM-650
  • HCM-710
  • HCM-1000 Series: HCM-1000C, HCM-1010.
  • HCM-2000 Series: HCM-2000C, HCM-2001, HCM-2002, HCM-2020, HCM-2050
  • Enviracaire Model: ECM-250i


Customer Reviews:

Total Reviews: 3 | Average Rating: 4.3 / 5.0

Well made!

Collected by

the whole system stinks. I get 18 to 20% humidity whether I use the unit or not. Would appreciate any advice.

Collected by

Great prices and fast service. Been a customer for several years and would highly recommend

Collected by