AIRCARE Space Saver Large Evaporative Whole House Commercial 6 Gallon Humidifier for Large Rooms 2,700 sq ft. With Digital Controls, Auto Humidistat and Automatic Shut Off

After many years of use with a similar unit (Kenmore) that resembled the slightly smaller AIRCARE humidifier product, I took a chance on this larger unit and am glad I did. My old Kenmore unit failed when it developed a leak in the bottom tray caused by one of the wheel posts that fatigued the bottom tray over time and caused a crack. The AIRCARE 6 Gallon Humidifier has an identical wheel configuration so I opted not to install the wheels and instead put the AIRCARE 6 Gallon Humidifier on a heavy plastic tray (Amazon sells them) and that is working great. With the AIRCARE 6 Gallon Humidifier in a central location of our first floor (~1200 sq ft) the moisture output reaches ~4 gallons of output every 24 hours when run at low speed. This is sufficient to keep the first floor very comfortable without condensation on any windows. As expected, the output increases markedly at the mid and max fan speed settings but I have not found it necessary to use those speeds even on the coldest and driest days. I use a clean 1 gallon plastic jug to fill it each morning along with 1/2 cap of "Essick Bacteriostatic" treatement. The filter looks fine and still works great even after 6 weeks of use. No sign of any discoloration or scale build up in the bottom water tray at this time. The unit shuts down appropriately when the humidity reaches the setting I choose with the digital humidistat setting. The only caveat I would mention is that when FAN SPEED 2 (F2) is selected the motor makes an audible hum. This noise is not present at low speed (F1) or at high speed (F3) so it is obviously caused by whatever means they are using to control the motor speed. I have seen mention of this in other reviews so it does not really concern me as it appears to be "normal". At any rate, the AIRCARE Whole House 6 Gallon Humidifier is working great in our house and I am very pleased with how effectively it handles the first floor of the house. Highly recommended without hesitation.

We have been using this now for four years, all winter long. It operates for hours on end in the winter time. It is very simple to use, easy to operate, and can humidify large areas. Our total upstairs area that we use it in is probably around 600-700 sq ft, a kitchen and living room with a fireplace. If you're doing much more than that, I'd suggest getting another one for other rooms.We use a filter all winter long. We run it non-stop for two weeks, then put it in the bathtub, rinse it out and clean it thoroughly. We spritz a little hydrogen peroxide bleach across the filter, let it set for a few min, then rinse that off good and crank it up again. Sometimes if we have a few days in a row where the humidity is up we'll allow the paper filter to dry out...put it in an empty tank, put a folded up piece of paper towel under the water level rod and turn it on. When you're running it on low it is very quiet...however, on very dry days you'll probably have to run it on medium or high to keep the humidity up. Then it's not so quiet, but it's the noise a fan makes. No regrets at all buying it, we'll get another one when this one finally packs it in.A few other notes:1) buy the recommended filters. Yes, they might be a little more, but they work well and if you're replacing them once a season not a big deal2) make sure you clean it out at least every two weeks, and do NOT let it just sit with water in it...either drain it or run it. We do not put any chemicals or vinegar in the water, but we just keep it out of the way where it can't get junk in it and clean it on schedule.3) make sure when you clean it you do use soap and warm water, and something (safe) to clean the filter. Be careful with the filter, as when it's wet you can damage it and have to use another one.4) I noticed several people commented on shoddy quality. It's all plastic except for the fan motor...but you get it for a bit over $110. We've had no mechanical or electrical problems with it, and its done the job we wanted it for and done it well.

Have had this unit now for eight years. You can read all the comments about the noise and the flexing of the base cabinet etc. It’s a somewhat cheaply made unit, but it functions well.Running it here in the desert in Palm Springs, where the humidity inside is usually well under 15% and even less if you’re running any kind of heating.Note some people see the CF code and think the unit is broken. It just means check the filter. Unplug the unit for a few minutes. Check the filter/change it or not, and simply plug it back in and it will run.We run this unit anywhere from 4 to 4 1/2 months pretty well 24 hours a day. We lower the speed during the day because of the noise, and turn it on full blast going to bed.The water here has lots of minerals. Absolutely need to change the filter after about two months because it’s JAMPACKED with calcified minerals. It becomes very hard and brittle and the humidity output will drop dramatically with those conditions. If that happens to you, it is what it is and it’s doing its job in terms of filtering out minerals before pumping vapor into the atmosphere.You should change the filter and wash the unit at 2 months as at that point you may have some algae film on the inside of the base container.Inspect the filter to make sure it isn’t developing any moldWe’ve never used the bacteriacide. Every time we fill we pour in 2-4 oz of hydrogen peroxide.Once a week add maybe a tablespoon of chlorine bleach to the full unit to try to cut down on the algae as well.Despite doing that, the inside of the cabinet will still get slimy, and sometimes the filter will start to show some mold so checking the filter and cleaning the unit can’t be emphasized enough for those who may have breathing issues, or try one of the commercial bacteriacides and see if that works better.Have tried a few aftermarket filters, but they don’t humidify quite as well. I guess it’s a trade-off between cost of the original filters/longevity/higher humidity output and more frequent filter changes with cheaper replacements.Everybody needs to figure what works best for them.