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Cleaning instructions my HM 495 i putting out a mist that has a white type dust in it..what do I do to fix this

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I have an Ultrasonic Visible Mist Humidifier, Model SUL 495. The fan runs, but no mist. I have cleaned it with bleach, as directed in manual. Any help for it? Thanks.


Is the little ultrasonic disk clean, or is there hard scale on it? If there are hardened deposits on the disk they will stop it from vibrating. Be careful not to damage it by scraping or digging with a tool. I have found that the best way to clean it is with a Waterpik, turned all the way up. It often takes ten minutes of work to clear it off. This is MESSY, do it in the shower, or outside.

Feb 25, 2017 | Humidifiers

1 Answer

My humidifier is not working first times worked great


The manufacturer states you can use tap water in these devices, but then goes on the disclaim that if you have water with minerals or hard water then white "dust" deposits can occur. Theses deposits are supposed to be noted and if seem, you are to change to filtered or distilled water or purchase one of their filter cartridges. These devices use very tiny holes to produce the mist you get out of them. It takes almost nothing to clog them. You should always use distilled water in these devices to prevent clogging. They also require very regular cleaning to stay clean and thus prevent them from becoming mold fountains. White vinegar and water should be used for cleaning. Avoid detergents as they can gum up the inner workings of the unit.

Sep 08, 2016 | Crane Ultrasonic Cool Mist Teardrop...

1 Answer

A white dust is comming from my cool mist humidifier, is is dangerous to breathe?


Its probably just from the minerals in your water. If so you should be fine although it does make a bit of a mess around the house. If the white dust bothers you, fill your Hankscraft 240 with distillers water rather than tap water and the problem will go away.

Mar 07, 2015 | Hankscraft Gerber Model 240 Cool Mist...

1 Answer

Water leaking from tank cap HM495


is the rubber seal in place on the cap or did you lose it could be a small crack where the threads are look for both , good luck

Mar 07, 2015 | Humidifiers

1 Answer

I have an HM 495, the past 4 days it has been working fine. Now there is no mist coming out and it seems to be spilling water out of the back of the base. What is the problem? I have not been using warm or...


When this happened to me, I took the tank into the bathroom to look at the bottom and then I tried to turn the knob and it wasn't all the way tight. After I tightened it, I put it back on the base and the mist started right away.

Jan 14, 2011 | Holmes Products HM495-UC Humidifier

1 Answer

Family Care cold mist humidifer


cool mist humidifiers don't put out any mist. only the warm ones do. now if you put your hand over the area where it's coming out for about 2 minutes and take it away your hand should feel damp. almost clammy. if it feels like that the unit is working fine. so your not doing anything wrong. if you have any other concerns please let me know.

Mar 13, 2009 | Family Care HM1555 Humidifier

2 Answers

The humidifier has stopped producing mist


boogiecheck is right, the one pictured uses natural evaporation( no white dust) I just ordered one from abdistrsupport@gmail.com and mine works great. I own 3 total.

Dec 07, 2008 | Venta - Airwasher LW44 Humidifier

5 Answers

Air-o-swiss 7135 humidifier not misting


Ours has done the same thing after only 2 weeks. From article research, it appears that this occurs to everyone after cleaning it with the EZ Cal that is recommended. From looking at our unit and figuring out how it works, it appears as though the Ultrasonic Vibration membrane has stopped working. This particular piece is responsible for vibrating the water and making water mist particles which are blown out with the air. We will be calling the manufacturer on Monday to register a complaint and request a replacement unit.

Nov 23, 2008 | Air-O-Swiss 7133 Humidifier

3 Answers

Humidifier leaves film everywhere!


I talked to Kaz, a manufacturer of humidifiers, and they said this is referred to as "white dust". It's simply the minerals from your water settling on your furniture...I had to same problem so I called the manufacturer.

He said it's not dangerous but that I should use distilled water in my humidifier from now on since my water will always do that. He also stressed the importance of cleaning the unit weekly with a bleach and vinegar solution per the manufacturers specs.

Nov 21, 2007 | Air-O-Swiss 7133 Humidifier

2 Answers

Humidifier blows out dust


As the previous poster said, it's probably a problem with your water.

Are you using tap water or bottled mineral water? If so, there are minerals which get nebulized along with the water, and leaves a white, dusty, residue. I fill my Crane Pig humidifier with DISTILLED water, which is pretty pure. Make sure that the water is DISTILLED ONLY, since some of the water companies distill the water and then add minerals back in (they almost got me here until I noticed the label that said "with minerals added"). The reason this is important is because during the distilling process, the water is boiled, evaporated, and then the vapor is condensed back to liquid. This removes any impurities or dissolved minerals from the water. You can see Wikipedia for more on this topic here.

Additionally, I use both the Crane Demineralization Filter Cartridge (which works for the penguin as well, and gets installed in place of the original water tank cap), and the ProTec PC-1 Humidifier Tank Cleaning Cartridge (which I plop into the water tank) to keep the water both de-mineralized and bacteria free. I got both products at Amazon.com.

With these 3 things, so far I haven't had any white dust residue, and the mist feels fresh and clean.

On a side note, by using distilled water, you also prevent any mineralization from building up on the nebulizer or water level sensor, which can cause the humidifier to eventually stop producing mist...

Nov 19, 2007 | Crane Penguin 1 Gallon Humidifier

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