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๐ง Breathe Better, Live Better โ The Filter Your Home Deserves
The Honeywell Replacement Wicking Filter A (HAC504) is a genuine, patented humidifier filter designed to block 99.99% of microbial growth and capture large particles with its blue pre-filter layer. Compatible with multiple Honeywell evaporative humidifier models, it ensures optimal indoor humidity levels to relieve cough and congestion, especially during cold and flu season. Trusted for over a century, Honeywell delivers reliable air quality and home comfort with this essential replacement filter.

| ASIN | B07V4T5477 |
| Best Sellers Rank | #4,395 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Respirator Parts #10 in Humidifier Parts & Accessories |
| Brand | Honeywell |
| Brand Name | Honeywell |
| Color | White |
| Control Method | Touch |
| Customer Reviews | 4.6 out of 5 stars 6,614 Reviews |
| Filter Type | Wick |
| Global Trade Identification Number | 00328785003574 |
| Included Components | Rawlings Bat |
| Item Dimensions D x W x H | 6.4"D x 6.4"W x 5"H |
| Item Type Name | Wicking Filter A |
| Item Weight | 3.36 ounces |
| Manufacturer | Kaz |
| Material | Paper |
| Model Name | Replacement |
| Model Number | HAC504 |
| Number of Packs | 1 |
| Operation Mode | Evaporative |
| Other Special Features of the Product | Filter captures minerals and pollutants from water and helps prevent white dust. Humidifier wicking filter fits HCM-350 series, HEV355, HCM-315T, HCM-300T, HEV312, HCM-710. Change your filter if: It's hard and crusty, develops an odor or moisture output is decreased |
| Part Number | HAC504PF1 |
| Power Source | Corded Electric |
| Product Dimensions | 6.4"D x 6.4"W x 5"H |
| Room Type | Living Room |
| Special Feature | Filter captures minerals and pollutants from water and helps prevent white dust. Humidifier wicking filter fits HCM-350 series, HEV355, HCM-315T, HCM-300T, HEV312, HCM-710. Change your filter if: It's hard and crusty, develops an odor or moisture output is decreased Special Feature Filter captures minerals and pollutants from water and helps prevent white dust. Humidifier wicking filter fits HCM-350 series, HEV355, HCM-315T, HCM-300T, HEV312, HCM-710. Change your filter if: It's hard and crusty, develops an odor or moisture output is decreased See more |
| UPC | 328785003574 |
| Unit Count | 1 Count |
| Warranty Description | Warranty. |
D**3
Quiet and Clean Humidity Boost
I bought these replacement filters because the minerals in my evaporative humidifier were leaving a chalky white dust on surfaces and I wanted an easier way to cut it down. I installed Filter A in the humidifiers listed in the description, and swapping it in was simple. The blue pre-filter layer catches larger particles, and the wicking material seems to keep the moisture steady without constant fiddling. What stood out was how much cleaner surfaces looked and how the mineral buildup around the unit slowed down. The 3 pack is handy because I can rotate replacements and keep a fresh one on hand. One small note is that you should verify exact model compatibility and replace the filter on a regular schedule to maintain performance. Overall I would give it 5 stars for reliable performance and quiet operation.
D**Y
OEM is best, don't leave them wet.
These seem to be higher quality than the 3rd party ones you can find at a lower price. These are thicker (which means they'll last longer) and the blue filter keeps out dust that can contribute to mold growth. A tip for anyone encountering mold growth, run the humidifier until all of the water is empty. Do not let water sit without the fan running. The constant evaporation makes it difficult for mold to grow. Also toss them when they are crusty and discolored. That's the deposits from your tap water and those won't hold water so the wick becomes less and less effective over time. I never clean my wicks, I just observe how much water is left in the tank each day when I fill it up. A fresh filter will easily drain the tank in about 8-12 hours. An ok filter will drain it in 24 hours. A bad filter drains it in 48 hours. I use an bacteriostatic in the water tank to help prevent any growth. I also clean out any accumulated dust about once a week. I recently got an RO water filter which will definitely help prolong the wick.
R**Y
best performer
One of the higher priced choices for evaporator pads. Evaporates significantly more moisture into the air compared to other pads. No waking with dry mouth. Longer life regarding mineral buildup. Worth the higher price.
J**H
Best of the bunch
Name-brand filter, much better than the generics. However, they tend to fall apart sooner than I'd like. It would be nice to get a couple of months out of these filters.
F**L
Good filter
Perfect fit filters at a good price
F**1
great buy
great buy
S**S
Expensive but works fine.
Works well, but expensive for what they are.
D**E
These work, the cheap ones do not work
I accidentally started the year with a cheap one and it lasted 3 weeks. We have purchased several of these over the years. We actually flip and clean them every week by scrubbing the calcium deposits off with our rough gloves while running water over them, then flipping it and going again. They last a year if we do the weekly cleaning and flip. We have a water softener, but a high particulate count. They fit well and keep standing. They do not turn orange like the cheap ones. Sometimes you get what you pay for.
G**K
Original und Gunstig
Prima Filter und Gunstig
P**M
Better than the original.
It's pretty much the same, but thanks to the blue part, it seems to stay wet for much longer: the original one used to get dry quickly, and I had to get it wet again like once a week. Other than that seems to be the same.
K**N
well made
they are made well and last about two to three months with regular washing and flipping them every few days. after two months they tend to get badly stained due to calcium and lime in the water and if the city water is hard. by the third month they begin falling apart and need replacing. three filters will get me through a long winter and jkeep my home at 43% Rh
G**H
They fit and work
Work just as well as original wicking filters but much cheaper!!
B**H
Works well.
Good replacement for existing filter.
Trustpilot
1 month ago
2 weeks ago