HoMedics UHE-WMTF365 TotalComfort Plus Ultrasonic Humidifier
WARM & COOL MIST ULTRASONIC HUMIDIFIER WITH UV-C
HOW TO USE
DIGITAL DISPLAY
REMOTE CONTROL
CONTROL PANEL
HOW TO FILL
HOW AND WHY TO USE DEMINERALIZATION CARTRIDGES
- The Homedics demineralization cartridge will help reduce the potential for white dust, a deposit of minerals left behind from using hard water in your humidifier. The cartridge should be replaced every 30–40 fillings. The cartridge may need to be replaced more often if you are using very hard water.
TO FILL WITH A PITCHER
- Remove 1 demineralization cartridge from the packaging and soak it in water for 10 minutes.
- Remove the tank cover to fill the tank
- Fill with clean, cool water or distilled water (if in an area with hard water) until the water level reaches the MAX fill line. DO NOT fill with warm or hot water.
- CAUTION: Never add essential oils or other additives to the water tank or water reservoir.
TO FILL IN THE FAUCET
- Remove 1 demineralization cartridge from the packaging and soak in water for 10 minutes.
- Use 2 hands to carry the water tank. Fill with clean, cool water or distilled water (if in an area with hard water) until the water level reaches the MAX fill line. DO NOT fill with warm or hot water.
- CAUTION: Never add essential oils or other additives to the water tank or water reservoir
- Add the soaked demineralization cartridge to the water tank.
ABOUT WHITE DUST
- Use of high mineral content hard water may cause a white mineral residue to accumulate on surfaces in the room near the humidifier. The mineral residue is commonly called “white dust.” The higher the mineral content (or, the harder your water is), the greater the potential for white dust. The white dust is not caused by a defect in the humidifier. It is caused only by minerals suspended in the water
HOW TO OPERATE
POWER BUTTON- Turns humidifier on/off.
WARM MIST- Press to turn warm mist on/off. The warm mist icon will illuminate on the display. Once warm mist is selected, it will take 20-30 minutes to warm the mist.
TIMER- Press the timer button until the desired auto-shutoff timer setting is displayed. The timer button will cycle through the following settings: 2, 4, 8, 12, and 0 hours. To cancel the timer at any time, press the timer button until 0 hours is displayed.
NOTE: Always be sure the humidifier has a full tank of water prior to using the timer setting. 
NIGHT-LIGHT/DISPLAY LIGHTS- Press the night-light button once to turn on the night-light. The light at the bottom of the humidifier will turn on. Press the button a second time to leave the night-light on, but turn off display panel. Press the button a third time to turn off the night-light and display panel. Press the night-light button a fourth time to turn the display lights on.
PROGRAMMING THE HUMIDITY LEVEL- The default humidistat setting is CO (continuous on). The programmable humidistat can be set in 5% increments, from 35% to 55% humidity or continuous on. The humidity level will increase by 5% each time the button is pressed and will be displayed on screen.
NOTE: Humidifier will turn off when the set humidity level is reached. Humidifier will turn on when the humidity level drops 5% below the set humidity level.
NOTE: To eliminate any programmed humidistat setting, continue to press the programmable humidistat button until you reach CO, one level after 55%. 
MIST OUTPUT- Mist adjusts from the lowest output (1) to the highest output (5). To increase the mist output, press the mist output button. The corresponding mist level will be lit on the display. Use the 360-degree rotating mist nozzle to adjust the mist output direction. Do not point the mist nozzles toward walls or furniture
POWER BUTTON
WARM MIST
TIMER
NIGHT-LIGHT/DISPLAY LIGHTS
PROGRAMMING THE HUMIDITY LEVEL
MIST OUTPUTHOW TO USE OIL TRAY
- The oil tray is located on the back side of the humidifier at the bottom of the humidifier base.
- Push to open and remove the tray. Use the 1 pre-installed essential oil pad in the oil tray (3 total included).
- Add 5–7 drops of essential oil to the pad. You may use more or less depending on personal preference.
- CAUTION: Only place essential oil on the pad and NOT directly into the tray.
ARE ESSENTIAL OILS SAFE TO USE AROUND PETS?
- We should always exercise caution when using essential oils around pets. Keep all essential oil and aromatherapy products (like diffusers) out of the reach of pets. Keep open bottles away from pets to avoid internal consumption. We do not recommend the topical use of essential oils on pets, as they have a strong sense of smell and cannot get rid of the oil if they don’t like it or it is disturbing them. When diffusing essential oils around pets, always diffuse in a wellventilated area and leave an option for them to remove themselves from the space, such as leaving a door open. Every animal is different, so carefully observe how each animal responds when introducing an essential oil for the first time. If irritation occurs, discontinue the use of the essential oil. We recommend seeking medical attention if ingestion of essential oil occurs.
CLEANING THE OIL TRAY
- Open the oil tray and remove the pad.
- Rinse the oil tray with water and wipe dry with a soft cloth. DO NOT clean with detergent or liquid cleaners.
- NOTE: If continuing to use the same scent, set the oil pad aside for reuse. DO NOT leave a used pad in the oil tray when storing.
STORAGE
- Store in a cool, dry location.
Before storing
- Descale the humidifier following the Scale Removal instructions.
- Clean the oil tray following the Cleaning The Oil Tray instructions. DO NOT leave a used pad in the oil tray when storing.
REMOTE CONTROL BATTERY REPLACEMENT
- Use a small Phillips-head screwdriver to unscrew the battery compartment screw.
- NOTE: The screw is not removable.
- Remove the battery cover.
- Remove the button cell battery and dispose of per local regulations.
SPECIFICATIONS
- ULTRASONIC TECHNOLOGY
- This humidifier uses ultrasonic, high-frequency technology to convert water into a fine mist that is dispersed evenly into the air.
- ELECTRICAL RATING
- 120VAC 60Hz 100W 0.83A
- UV-C TECHNOLOGY
- UV-C technology reduces E. coli bacteria, Staphylococcus epidermidis bacteria, A niger mold, and P. citrinum fungus in the mist. Shown by independent laboratory testing.
- AUTO-SHUTOFF PROTECTION
- When the tank is empty, the humidifier will shut off automatically. The out of water indicator will glow red.
- CAPACITY
- 2.0 gallons –7.57 liters.
- RUNTIME
- Up to 12-120 hours. Runtime is based on setting the mist level on the low setting. Based on the natural humidity level in your home, the temperature of water you use, and the mist-level setting, you may experience longer or shorter runtimes.
- ROOM SIZE
- 607 sq. feet / 56.3 sq. meters. Based on AHAM HU-1-2016 measurement as shown by independent laboratory testing.
- QUIET OPERATION
- 26 dBA
TROUBLESHOOTING
| PROBLEM | POSSIBLE CAUSE | SOLUTION |
| No power | • The unit is not plugged in • The unit is not turned on • No power at the unit | • Plug in unit • Press the power button to turn the humidifier on • Check circuits and fuses or try a different outlet |
| Reduced or no mist | • The humidifier has not warmed up • Low mist setting • Too much water in the water reservoir • Moving the humidifier with water in the tank • Scale build-up • Out of water • Water tank or water reservoir washed with detergent | • Allow the humidifier to run 20 minutes to warm up • Turn to a higher mist setting • Remove the water tank and pour out all water in the water reservoir. Replace the water tank. The water reservoir will refill automatically. • Too much water in the water reservoir. See the solution above. • Clean following the Scale Removal instructions. • Fill the water tank • Rinse thoroughly with clean water until there is no foam or smell from detergent |
| PROBLEM | POSSIBLE CAUSE | SOLUTION |
| The humidifier does not turn on or turn off during the operation | • Out of water • Room humidity higher than programmable humidistat setting • Auto mode | • Fill the water tank • The humidifier has cycled off. Set the humidistat to a higher setting or to CO (continuous on). • Room humidity is higher than 56% RH. The humidifier will cycle on when the humidity drops below 55%RH. |
| Water overflows from the water reservoir | • Damaged water tank • Water tank outlet valve • Moving the humidifier with water in the tank causing too much water to enter the water reservoir • Tank not seated securely on the base | • Check the tank for cracks or damage • Debris prevents a watertight seal. Use your finger to open the valve and rinse with water. • Remove the water tank and pour out all water in the water reservoir. Replace the water tank. The water reservoir will refill automatically. • Empty all water from the water reservoir and place the water tank properly on the base. The water reservoir will refill automatically. |
| Peculiar odor | • Unit is new • If unit is in use, the odor may be a dirty tank or old water in the tank and water reservoir. | • Open the tank cover and let the tank air out in a cool, dry place for 12 hours • Clean following the Weekly Cleaning instructions. If odor persists, clean following the Scale Removal instructions. |
| Excessive noise | • Unit is not level • Low water level | • Place the unit on a flat, even surface. • Check the water level; refill the tank if the water is low |
| White dust accumulation | • Hard water used • The demineralization cartridge needs to be replaced | • Use distilled water and a demineralization cartridge • Replace demineralization cartridge |
| Clean Reminder illuminates on the digital display | • Transducer/Ultrasonic Membrane needs cleaning • Clean reminder needs to be reset | • Follow Scale Removal instructions in the How to Clean and Care Section. • After filling the tank with water, press and hold the Night-Light button until the red out-of-water symbol turns off. |
2-YEAR LIMITED WARRANTY
- Homedics sells its products with the intent that they are free of defects in manufacture and workmanship for a period of 2 years from the date of original purchase, except as noted below. Homedics warrants that its products will be free of defects in material and workmanship under normal use and service. This warranty extends only to consumers and does not extend to Retailers.
- To obtain warranty service on your Homedics product, contact a Consumer Relations representative for assistance. Please make sure to have the model number of the product available. Homedics does not authorize anyone, including, but not limited to, Retailers, the subsequent consumer purchaser of the product from a Retailer or remote purchasers, to obligate Homedics in any way beyond the terms set forth herein. This warranty does not cover damage caused by misuse or abuse; accident; the attachment of any unauthorized accessory; alteration to the product; improper installation; unauthorized repairs or modifications; improper use of electrical/ power supply; loss of power; dropped product; malfunction or damage of an operating part from a failure to provide manufacturer’s recommended maintenance; transportation damage; theft; neglect; vandalism; or environmental conditions; loss of use during the period the product is at a repair facility or otherwise awaiting parts or repair; or any other conditions whatsoever that are beyond the control of Homedics.
- This warranty is effective only if the product is purchased and operated in the country in which the product is purchased. A product that requires modifications or adoption to enable it to operate in any other country than the country for which it was designed, manufactured, approved, and/or authorized, or repair of products damaged by these modifications is not covered under this warranty.
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HoMedics UHE-WMTF365 TotalComfort Plus Ultrasonic Humidifier-FAQs
What do the buttons on my HoMedics humidifier do?
The buttons on your humidifier are:
1. Power button: Turns the unit on or off.
2. Timer button: Sets the operating time.
3. Nightlight button: Controls the nightlight function.
Additionally, there is a power/out of water indicator light near the nightlight button.
What settings are available on a HoMedics humidifier?
You can adjust the humidity level in 5% increments between 35% to 55% or set it to continuous mode. Once the set humidity level is reached, the humidifier will automatically turn off.
How do I reset my HoMedics humidifier?
To reset the indicator, turn on the unit and press and hold the ION button for 3 seconds.
How do I turn off my humidifier on the thermostat?
To turn off the humidifier connected to your thermostat, set the humidistat to the off position or adjust it to the lowest humidity setting.
How often should I clean my HoMedics humidifier?
Clean your humidifier every 2-3 weeks by using a mixture of 50% distilled water and 50% white vinegar. Lightly wipe the base and ultrasonic nebulizer with a cloth dampened in the mixture, then dry the unit.
How do humidifiers work without heat?
Cool mist humidifiers use either a fan to evaporate water from a wick or ultrasonic vibrations to break water into small particles, dispersing them as cool vapor into the air, raising humidity without increasing temperature.
What is the working principle of a dehumidifier?
A dehumidifier works by drawing humid air through a fan and passing it through a heat exchanger, which condenses moisture into water droplets. The dry air is then expelled outside, reducing indoor humidity.
What happens if my ultrasonic humidifier runs dry?
If the humidifier runs out of water, it should automatically shut down to prevent damage. Newer models are equipped with an auto-shutoff feature that stops the unit when water levels are low.
Is the HoMedics humidifier good?
Yes, users find the HoMedics Ultrasonic Humidifier to be stylish, quiet, and efficient, making it an excellent addition to any room.