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Honeywell HAC-504 Series Humidifier Replacement Filter, Filter A
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- Enter your model number to make sure this fits.
- Use with Honeywell cool moisture evaporative humidifiers
- To ensure stated product performance, use only genuine Honeywell Replacement Wicking Filter model HAC-504. It is treated with Protec® antimicrobial to inhibit up to 99.99% of mold growth on the filter
- Optimized Filter Design maximizes moisture output and change your filter if it is hard, crusty or brittle, it develops an odor or if the moisture output has decreased
- Filter captures minerals and pollutants from water & helps prevent white dust
- Fits HCM-350 series, HEV355, HCM-315T, HCM-300T, HEV312, HCM-710
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From the manufacturer
Honeywell HAC-504AW Humidifier Replacement Filter, Filter A
- Updated model of the HAC-504AW, the HAC504V1 now features a new optimized filter design that maximizes moisture output.
- 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 and helps prevent white dust.
- Warranty: n/a.
- Product Size (LxWxH): 3.75 x 5.75 x 9.25
- Change your filter if it is hard, crusty or brittle, it develops an odor or if the moisture output has decreased.
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 of Honeywell's 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 you and your loved ones with Honeywell and their excellent series of replacement filters.
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.
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FilterBuy Honeywell HAC-504AW Compatible Humidifier Filters (Pack of 3). Designed by FilterBuy to fit Honeywell HCM-600, HCM-710, HCM-300T & HCM-315T. Compare to Part # HAC-504AW / HAC-504.
Honeywell HAC504 Replacement Humidifier Filter
2-Pack HAC-504AW Replacement Filter for Honeywell HAC-504AW Humidifier fit Honeywell HCM-600, HCM-710, HCM-300T & HCM-315T by Aunifun
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|Sold By||Amazon.com||Amazon.com||Amazon.com||FilterBuy||Atomic Filters LLC||Aunifun|
|Color||Filter A||White||Basic White||White||white with blue mesh||Hac-504aw Replacement Filter|
For use with cool moisture evaporative humidifiers. Honeywell replacement filters are designed specifically for Honeywell humidifiers to optimize performance and output. For best results, use only genuine Honeywell replacement filters.
Top customer reviews
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Output and Longevity:
That depends on usage, care, water quality and how much of a reduction in output you are willing to accept before replacing it. I have hard tap water and expect to get about 2 months ( 8 hours a day) with an eventual 33% reduction in vapor output. With the Honeywell HCM-350 humidifier fan speed set on MEDIUM, and the room relative humidity at 35%, I got an output rate of almost 7 quarts/day when the filter was new. After 4 weeks the rate was 5.5 quarts/day.
Care and daily attention is essential:
Keep it wet. Flip the filter daily, clean it in diluted distilled white vinegar solution when it gets crusty. I do this every 170 hours of use or every 3 weeks - which ever comes first to remove mineral deposits. Eventually the wicking rate is reduced and the filter will get limp and not fully stand up. I soak 25 minutes in slightly warm 15:1 dilution of 5% distilled white vinegar, swish a bit and rinse very well (for what it's worth). Is all this a big pain? Not at all. Flipping the filter takes less than 10 seconds and the occasional filter cleaning is a breeze.
I never saw a speck of mold. I do use the Protec anti-microbial capsules to be safe. Those showing large amounts of mold infestation obviously were not flipping the filter daily and keeping it wet or they would have seen the mold and removed the filter long before it got so gross. Do you need the Protec or some other anti-microbial agent? I don't know. I use it after the first filter cleaning (thinking the acetic acid might reduce the filters A-M effectiveness) and have had no problems but have not tried using the humidifier without the A-M agent. I change the Protec capsule after I change the filter.
So you get the following "Features"
Half the life
Half the durability
Half the moisture output
ALL FOR THE SAME PRICE!!!
What a deal /sarcasm
So I wrote to Kaz about the filter change and here is what they said:
Thank you for your recent email.
Due to our product dimensions we were forced to minimize the size of the filter your humidifier uses. We have many Honeywell units that use the HAC-504AW filter, and unfortunately, due to the filter thickness we had several units that were having a lot of trouble fitting the wet filter. There were many accounts where the filter would cause the tank or housing not to sit correctly, where it would get caught on an internal humidifier part, or where it would absorb more water than the fan could take off of it efficiently.
For these reasons the new filters have had a few layers removed in a way that allows them to fit and work much more comfortably in all of our units.
However, the thicker style is still available to order using the information below.
Part Number: HAC-504OS $12.99 USD
Telephone: 800-477-0457 (M-F 7:30AM-7:00PM EST) with Visa, Mastercard or Discover (All of US and Canada). Our winter "order department" cannot take this order, so please do not push the "to place a new order" option. Please push option 4 from the first menu and then press option 7, which will direct you right to a Consumer Relations Representative who will be able to take the order. If you choose the "to place a new order" option from the main menu they will tell you they cannot take this order.
Mail: Send check or money order to:
250 Turnpike Road
Southborough, MA 01772
Shipping and handling for all telephone and mail orders is a flat $4.95 per order for parts, filters, and accessories. Please add applicable sales tax for CA, FL, MA, NY and TN. Orders being shipped to Canada are subject to duty and/or brokerage charges at the time of delivery.
I am looking for the same filter that Honeywell puts into their Honeywell humidifiers to sell them. It looks bad that Honeywell sells a unit with a good filter in it but offers a bad one as a replacement when you already can’t return the unit anymore.
Amazon was great though and returned my money. I just wish I can find a replacement filter just like the original and not the fake, poor quality one!