Honeywell HAC-504 Humidifier Replacement Filter, Filter A
- The updated version of the HAC504 now features a new optimized filter design that maximizes moisture output.
- Blue pre-filter layer helps capture large airborne particles from the air that passes through the filter.
- Protec treated antimicrobial filter inhibits up to 99% of mold growth.
- Antimicrobial treatment helps prevent the growth and migration of mold, fungus and bacteria on the filter.
- Wicking filter captures minerals and pollutants from water and helps prevent white dust.
Fits Honeywell Humidifier Models:
- HCM-300 Series: HCM-300T, HCM-305T, HCM-310T, HCM-315T, HCM-350, HCM-350B,
- HEV-300 Series: HEV-312, HEV-355
- HCM-500 Series: HCM-530, HCM-535, HCM-535-20, HCM-540, HCM-550, HCM-550-19, HCM-551, HCM-560
- HCM-600 Series: HCM-630, HCM-631, HCM-632, HCM-635, HCM-640BW, HCM-645, HCM-646, HCM-650
- HCM-700 Series: HCM-710
- HCM-1000 Series: HCM-1000, HCM-1000C, HCM-1010
- HCM-2000 Series: HCM-2000C, HCM-2001, HCM-2002, HCM-2020, HCM-2050
- Also fits: Enviracaire Model: ECM-250i
Combating and removing various harmful pollutants and minerals, these Honeywell replacement filters have an exceptionally high compatibility range. They can be placed in nearly all Honeywell natural cool moisture humidifiers. The addition of Protec Antibacterial Treatment decreases the amount of growth and migration of mold, fungus, algae and bacteria in the filter. Ensure a premier and hospitable breathing environment for yourself and your loved ones with a Genuine Honeywell Filter.
The Honeywell HAC-504 Replacement Filter is an ideal replacement for natural cool moisture humidifiers and will greatly assist in the removal of minerals and pollutants from the water. The Protec antimicrobial treatment helps prevent the growth and migration of mold, fungus, algae and bacteria on the filter. Featuring an optimized filter design, the Honeywell HAC-504 allows for the maximum in moisture output. It is recommended that the humidifier wicking filter be flipped regularly for the very best result. Depending on water quality and usage, wicking filters should be replaced every 30-60 days.
Compatible does not mean comparable. For best performance, use only Genuine Honeywell Filters.
Compatible with Humidifier Models:
- HCM300T (HCM-300T) Humidifier
- HCM305T (HCM-305T) Humidifier
- HCM305TCST (HCM-305T-CST) Humidifier
- HCM310T (HCM-310T) Humidifier
- HCM315T (HCM-315T) Humidifier
- HCM350 (HCM-350) Humidifier
- HCM350B (HCM-350B) Humidifier
- HCM350BCST (HCM-450B-CST) Humidifier
- HCM530 (HCM-530) Humidifier
- HCM535 (HCM-535) Humidifier
- HCM53520 (HCM-535-20) Humidifier
- HCM540 (HCM-540) Humidifier
- HCM550 (HCM-550) Humidifier
- HCM55019 (HCM-550-19) Humidifier
- HCM551 (HCM-551) Humidifier
- HCM560 (HCM-560) Humidifier
- HCM630 (HCM-630) Humidifier
- HCM631 (HCM-631) Humidifier
- HCM632 (HCM-632) Humidifier
- HCM632TG (HCM-632TG) Humidifier
- HCM635 (HCM-635) Humidifier
- HCM640BW (HCM-640BW) Humidifier
- HCM645 (HCM-645) Humidifier
- HCM646 (HCM-646) Humidifier
- HCM710 (HCM-710) Humidifier
- HCM1000 (HCM-1000) Humidifier
- HCM1000C (HCM-1000C) Humidifier
- HCM-1010 (HCM-1010) Humidifier
- HCM2000 (HCM-2000) Humidifier
- HCM2000C (HCM-2000C) Humidifier
- HCM2001 (HCM-2001) Humidifier
- HCM2002 (HCM-2002) Humidifier
- HCM2020 (HCM-2020) Humidifier
- HCM2050 (HCM-2050) Humidifier
- HCM2051 (HCM-2051) Humidifier
- HCM2052 (HCM-2052) Humidifier
- HEV312 (HEV-312) Humidifier
- HEV355 (HEV-355) Humidifier
- Enviracaire Mode ECM250i (ECM-250i) Humidifier
- Genuine Honeywell Filter
- Product Size (LxWxH): 3.75 x 5.75 x 9.25 in.
- Change your filter if it is hard, crusty or brittle, it develops an odor or if the moisture output has decreased.
If you are interested in ordering a large quantity of items you may qualify for volume pricing discounts. Volume Discount Pricing is a great way for customers to save big on large, bulk orders of most items available in our store. Please send a bulk order request to our friendly sales staff so they may create a quote and provide personal service for your order! You will receive a response within 1-2 business days and our office hours are Monday through Friday, 8am-5pm CST.
- Let us know what products & the quantities you are interested in.
- Get a detailed quote from a dedicated sales rep.
- Our warehouse ships directly to you.
- You enjoy the savings & are now a preferred customer.
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3293 Customer Reviews
4.9 Overall rating
Honeywell HAC-504 Humidifier Replacement Filter, Filter A Reviews
Sandra R C
July 7, 2023Easy filter replacement
Easy to replace and keeps humidifier cleaner.
Kari M
May 17, 2023Filter
For a small unit it does a good job adding moisture to your room
Susan J
May 8, 2023Humidifier filter
Buying this filter from Honeywell is so convenient because I know I will get what I need from my machine and they always work just as they're supposed to.
STEVE k
April 10, 2023Works great
These are an excellent choice to replace every year, at a fair price.
Betty M
March 15, 2023Honeywell HAC-504 Humidifier Replacement Filter, Filter A
I have two Honeywell humidifiers which use this product. They keep my apartment comfortable during the cold weather season when my furnace dries out the air. I appreciate the Honeywell store sending me alerts when it's time to order more of these filters.
chelV
March 4, 2023Very happy with these!
Living in a dry climate we use multiple humidifiers throughout our house. They run about half the year and we found we need to replace the filter at least halfway through each year. The new blue filters seem to last a little longer than the old design and weve been very happy with them.
Janet J
February 27, 2023As always, extremely fast service, and of course an excellent product
Amber O
February 20, 2023The best and only filters to buy
I've tried the knockoff brands for this, and simply put they do not work as well. I can feel an increased humidity output with these and will never go back to anther brand again.
Emmanuel M
February 1, 2023Works great!
These filters work great and last decently long.
Janet S
January 18, 2023A fine filter
I've used these filters for years with no problem. In my most recently purchased humidifier, it didn't seem to be working well, but I see that this humidifier fan turns too slowly on the lowest setting. No fault of the filter.