Honeywell Replacement Wicking Filter A for HCM Humidifier Models, 3 Pack

The fit is perfect. These wicks last at least a month or more, they raise the dry air level on the hygrometer, and it's Great for allergies, etc.

Works well, but expensive for what they are.

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.

If you have any humidifier that utilizes a filter it is essential to replace it regularly for continued proper functioning. While you could use it without a filter, there is a reason they have filters and that is to improve the quality of the air being circulated in your room. Nearly a year ago I bought a black Honeywell HCM-350 unit on Amazon. After about a month of nightly (8-12 hours) use on the highest setting I noticed a slightly different smell in my room (not bad, just different) and noticed that the water reservoir was not emptying as rapidly as it had initially. This was because the filter was in need if replacement. Over the month of use the filter hardened up and was discolored. As a result, less water was able to pass through the filter meaning less moisture was being pumped into my air, and presumably the air that was getting out was not as clean as it could be. Replacement is incredibly simple and after the first night I noticed an immediate improvement in the functionality of my humidifier. The water reservoir was significantly lower and my room smelled a bit fresher as well. In my opinion, if you are buying a humidifier unit like these that utilize a filter then you really should be prepared to regularly replace the filter. I know it can be a bit off putting to spend $10 every month but it is worth it. There are lower quality humidifiers available on Amazon and elsewhere that do not use filters, so you may consider those for a cheaper option. But if you want to step up to slightly higher quality or if you are very sensitive to air quality then you should be prepared to change the filter AT LEAST every month, maybe even more frequently if you are very sensitive.

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.

The blue outer gives me pause, as it's some kind of plastic, but the upside is that these last longer than the single-layer paper wicks (filters, as some call them). The KEY is to CLEAN them weekly! Obviously, all houses are different, but I can keep one going for about two to three months, and they run 24/7. I have three Honeywell humidifiers going through the winter, and we have used the blue filters for at least two years now. I don't want to go back to the paper-only wicks, even if they're cheaper. But cleaning is crucial, and either type will last longer with maintenance. My goal is to change the wicks once per season. Occasionally, I have to put in a third toward the beginning of spring if we keep using the furnace. How to keep 'em clean: Take the top off, take the tray to a full sink (or clean bucket,) put a tablespoon of bleach in water, drop a wick to sit in the treated water for 10 minutes, gently slosh it around, then empty/refill the receptacle with fresh water (or gently rinse under running water.) Rinse the wick thoroughly. Put it back in the tray and humidifier with a full tank of water, and it's good for another week, sometimes two. I check them weekly, for sure, and more often toward the end of 2 months. The tray needs to be cleaned at the same time. We have soft water, but it's still pretty mineral-y, so everything gets crusty. Nothing is going to last forever, but with a little maintenance, cleaning costs a lot less than chucking a good wick every two weeks, or installing a whole-house humidifier. Plus, I can loan one out to the kids for college dorms. Some years I have more problem with mold than others, but cleaning is critical to spending less on wicks and putting a bit less load on the garbage chain. I also like the light "pool" smell I get for a day after a cleaning. Sad to see the prices skyrocketing in the last year ('23/'24.) Was hoping to see a drop, but all the more reason to clean them to keep replacement costs down.

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.

These filters last around 6-7 weeks when used continuously during the winter months, which seems reasonable for something that's continuously wet. I combine with a Protec humidifier cleaning fish in the water tank. TIP to save money and time: if you have municipal water, use regular city tap water to make the filters last longer. I used filtered water for years before randomly simplifying to tap water, so the longevity increase was a nice surprise. An educated guess as to why: the city water treatment of chloramines and/or chlorine likely inhibits mold and bacteria growth. That won't significantly affect air quality because chloramines don't evaporate at all, and chlorine at such low concentrations is ephemeral. Save the filtered water for drinking.

Prima Filter und Gunstig

Good replacement for existing filter.

Three for the price of 2! Awesome legit product

Work just as well as original wicking filters but much cheaper!!

A little more expensive but the quality is worth it