Customer Reviews For The Honeywell Humidifier Replacement Wicking Filter A, 3 Pack

Overall Rating

5
215 Reviews
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9
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215 customers recommend this product
JAY T
March 23, 2026
Verified Purchase
Great Filters

We have several humidifiers and these filters greatly help in keeping the air emanating from them very clean, no white dust which helps a lot.

Sara K
February 27, 2026
Verified Purchase
So much better than the knock-offs

These are the ONLY filters I use for my honeywell humidifier. They last longer and perform so much better than the knock-off brands.

Susan O
February 12, 2026
Verified Purchase
Fast delivery, as expected, great packing!

There's not much more to say; I've come to expect perfection from my purchases at the Honeywell Store

Jerry E
February 4, 2026
Verified Purchase
Filter

It's a humidifier filter. Worked like it was supposed to. Needed replaced after about 5 weeks.

Claudia H
February 3, 2026
Verified Purchase
Excellent filter for the excellent humidifier

I have had the Honeywell humidifier for something like 4 years and the filters work great. In my one bedroom apt, each lasts about a month.

Brittany W
January 12, 2026
Verified Purchase
Consistent quality

Reliable product delivers quality filtration every time I order them.

Tracie K
December 22, 2025
Verified Purchase
Quality

The Honeywell filters are durable and last longer than other brands I have tried. Better buy especially because the cost difference is usually a few dollars.

JB
December 19, 2025
Verified Purchase
Work well

Expensive but work well. Definitely keep the humidity up.

Mike D
December 18, 2025
Verified Purchase
Honeywell Wicking Filters

I utilize the Honeywell HAC-504 Series Humidifier Replacement Wicking Filters for use on my Honeywell HCM-350 Series Humidifier. Upon installation, a new filter provides an instant, significant increased level of performance from the Humidifier which lasts for months. I highly recommend the utilization of these filters.

Robert C
December 17, 2025
Verified Purchase
Does the job!

This filter lasts quite a long time, even with daily use.

MS
December 7, 2025
Verified Purchase
easy replacement

I love my humidifier during the winter and these filters make it work the way I need.

Lisa G
November 21, 2025
Verified Purchase
Filters

Got a reminder and ordered them and got them in no time.

Ellen B
November 11, 2025
Verified Purchase
Again!

I order these yearly, expecting solid performance always.

Mike D
October 3, 2025
Verified Purchase
Honeywell Wicking Filters

I utilize the Honeywell HAC-504 Series Humidifier Replacement Wicking Filters for use on my Honeywell HCM-350 Series Humidifier. Upon installation, a new filter provides an instant, significant increased level of performance from the Humidifier which lasts for months. I highly recommend the utilization of these filters.

JAY T
July 17, 2025
Verified Purchase
Great Filters

These filters are great. Excellent for the humidifiers. We use with filtered water (a well known water filtration co.) White dust is non existent.

JAY T
April 14, 2025
Verified Purchase
Great Filters

These filters are great and work with the humidifiers to keep our house very dust free. These humidifiers are the dustless type and do work quite well.

Humidifier Customer
March 25, 2025
Verified Purchase
Excellent!

Great product, will purchase again!

Frank D
March 13, 2025
Verified Purchase
exact replacement

great exact replacement filters that also get delivered very quickly

Mike D
February 20, 2025
Verified Purchase
Honeywell Wicking Filters

I utilize the Honeywell HAC-504 Series Humidifier Replacement Wicking Filters for use on my Honeywell HCM-350 Series Humidifier. Upon installation, a new filter provides an instant, significant increased level of performance from the Humidifier which lasts for months. I highly recommend the utilization of these filters.

Judy P
February 12, 2025
Verified Purchase
Wicking filters

Excellent product - cool air filters

Which humidifier models are compatible with Filter A?

The HAC-504 (Filter A) has a very wide range of compatibility. It fits most Honeywell natural cool moisture humidifiers, including:

  • HCM-300 Series: HCM-300T, 305T, 310T, 315T, 350, 350B.
  • HEV-300 Series: HEV-312, HEV-355.
  • HCM-500, 600, 700, 1000, and 2000 Series.
  • Enviracaire: ECM-250i.
How often should I replace these filters?
For the best performance, it is recommended to replace the wicking filter every 30 to 60 days. However, this can vary based on your local water quality and how frequently you run the humidifier. You should change the filter immediately if it becomes hard and crusty, develops an odor, or if you notice a significant decrease in moisture output.
What is the benefit of the "Blue Pre-Filter" layer?
The updated version of the HAC-504 includes a blue pre-filter layer. This outer layer is designed to capture large airborne particles like dust, lint, and pet fur from the air before it passes through the main wicking filter. This helps maintain the efficiency of the filter and ensures cleaner moisture is released into the room.
How does the "Protec Antimicrobial Treatment" help?
The filter is specially treated with an antimicrobial agent that inhibits up to 99.9% of mold growth on the filter itself. This treatment helps prevent the growth and migration of mold, fungus, algae, and bacteria, ensuring that the moisture being evaporated into your home remains fresh and hygienic.

Combating and removing various harmful pollutants and minerals, this selection of three Honeywell replacement filters has 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 Genuine Honeywell Filters.

Honeywell HAC-504 Replacement Filters are 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.

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