Introduction
Thank you for purchasing the Homedics Ultrasonic Humidifier, Model UHE-CMTF47-TP. This manual provides important information regarding the setup, operation, maintenance, and troubleshooting of your new humidifier. Please read it thoroughly before use and retain it for future reference.

Figure 1: Homedics Ultrasonic Humidifier, Model UHE-CMTF47-TP.
Product Overview and Features
The Homedics Ultrasonic Humidifier is designed to enhance air quality in medium to large bedrooms and home offices. Key features include:
- Visible Cool Mist: Utilizes ultrasonic technology to convert water into a fine mist, dispersed evenly by a 360-degree nozzle. Effective in areas up to 400 sq. ft.
- Top-Fill Tank: Features a convenient 0.97-gallon water tank that provides up to 45 hours of runtime per fill. Includes Clean Tank Technology to help maintain tank hygiene.
- Adjustable Settings: Offers adjustable cool mist settings to suit your preference and space. Enjoy aromatherapy benefits with 3 included essential oil pads. The unit also features an automatic shutoff when the water tank is empty.
- Quiet and Convenient: Designed for nighttime use with whisper-quiet operation, a built-in night-light, and auto-shutoff protection. Comes with 1 demineralization cartridge.

Figure 2: Key features of the Homedics Ultrasonic Humidifier.

Figure 3: Benefits of using the Homedics Ultrasonic Humidifier.
Setup
- Unpacking: Carefully remove all contents from the packaging. Ensure all components listed in the 'What’s in the Box' section are present.
- Placement: Place the humidifier on a firm, flat, waterproof surface at least 12 inches (30 cm) from any walls and 3 feet (0.9 m) from any furniture or appliances. Do not place directly on carpet or rugs.
- Demineralization Cartridge: If using the included demineralization cartridge, ensure it is properly installed according to the separate instructions provided with the cartridge.
- Filling the Tank: Remove the top cover of the humidifier. Fill the 0.97-gallon tank with clean, cool tap water. Do not fill past the MAX fill line. Replace the top cover securely.
Operating Instructions
- Power On/Off: Plug the humidifier into a 120V AC electrical outlet. Press the power button to turn the unit ON. The unit will start misting at the lowest setting. Press the power button again to turn OFF.
- Mist Control: Rotate the mist control knob to adjust the mist output from low to high. The 360-degree nozzle allows you to direct the mist in any desired direction.
- Aromatherapy: Locate the essential oil tray on the side of the humidifier. Pull out the tray and add 5-7 drops of your favorite essential oil onto one of the included essential oil pads. Insert the tray back into the humidifier. The aroma will diffuse with the mist.
- Night-Light: Press the night-light button to turn the soft glow night-light ON or OFF.
- Auto-Off Protection: The humidifier is equipped with an automatic shutoff feature that will turn off the unit when the water level is too low. The indicator light will illuminate to signal that the tank needs refilling.
Maintenance and Cleaning
Regular cleaning is essential for optimal performance and to prevent mineral buildup and mold growth.
- Daily Maintenance: Empty the water tank and rinse thoroughly. Wipe the inside of the tank and base with a soft, damp cloth.
- Weekly Cleaning: To remove scale and mineral buildup, use a 50/50 mixture of white vinegar and water. Pour the mixture into the water tank and let it soak for 20 minutes. Gently scrub the inside surfaces with a soft brush or cloth. Rinse thoroughly with clean water.
- Demineralization Cartridge: Replace the demineralization cartridge every 30-40 fillings, depending on water hardness. Refer to the cartridge instructions for specific replacement guidelines.
- Essential Oil Pads: Replace essential oil pads when the aroma diminishes or when changing essential oil types.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or low mist output | Low water level; Mineral buildup; Unit not properly assembled. | Refill water tank; Clean the unit as per maintenance instructions; Ensure tank is seated correctly. |
| Unusual odor | Stagnant water; Dirty tank. | Empty and clean the water tank thoroughly; Use fresh water daily. |
| Water leakage | Overfilling the tank; Improper placement; Damaged tank. | Do not exceed MAX fill line; Place on a flat, stable surface; Contact customer support if tank is damaged. |
Specifications
- Model Number: UHE-CMTF47-TP
- Product Dimensions: 7.36 x 17.5 x 6.93 inches
- Weight: 6.7 Pounds
- Brand: Homedics
- Color: Taupe
- Capacity: 0.97 Gallons
- Runtime: Up to 45 hours
- Floor Area Coverage: Up to 400 sq. ft.
- Special Features: Aroma Diffuser, Auto Shut Off, Quiet Operation, Night-Light
Warranty and Support
This Homedics Ultrasonic Humidifier (Model UHE-CMTF47-TP) comes with a 2-Year Limited Warranty. For warranty claims or technical support, please refer to the contact information provided in the separate warranty card included with your product or visit the official Homedics website.





