Live Chat
Filters Fast Logo Header
bbb A+ site secured
Free Shipping on orders over $99 | FREE 365-DAY RETURNS

Product Availability

Please provide your e-mail address below to receive a notification when this product becomes available:


Thanks! We'll send you a notification when this product is available!

Honeywell HAC-504 Replacement Humidifier Filter


Honeywell HAC-504 Replacement Humidifier Filter
Retail: $14.99 /ea
You Save: 20%
As low as
Retail: $14.99
You Save: 20%

in stock
Ships by Tomorrow 8/7/2020
Sign up for the Home Filter Club during checkout.
You choose how often you want your filter, and we take care of the rest.
Are you a purchasing agent? Purchasing for a business?
Contact [email protected] to gain access to case quantity discounts, account management and terms!
Product Information

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: 1 | Average Rating: 5.0 / 5.0

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

Collected by

" Happy with my item, the price, and the fast delivery of my filters! " - Sam, Atlanta, GA
Sign Up for Promotions
business services
Business Services
Terms of Use | Privacy Policy | Sitemap | Model Lookup ©2005-2020 Filters Fast LLC - All Rights Reserved