Important Safety Instructions
Please read and save these instructions before operating your humidifier. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Always place the humidifier on a firm, flat, water-resistant surface at least 12 inches (30 cm) away from walls and appliances.
- Do not operate the humidifier without water in the tank.
- Do not place the humidifier near heat sources such as stoves, radiators, or direct sunlight.
- Keep the humidifier out of reach of children and pets.
- Unplug the humidifier before filling, cleaning, or moving it.
- Do not immerse the humidifier base in water or other liquids.
- Use only clean, cool tap water or distilled water. Do not add essential oils directly into the water tank; use the designated aroma pad tray.
- Do not block the mist outlet.
- If the humidifier emits an unusual sound or smell, turn it off immediately and unplug it.
Product Overview
The Winix L200 Ultrasonic Humidifier is designed to add essential moisture to your living space, featuring both cool and warm mist options, UV+ LED technology for water sanitization, and an aroma pad tray for essential oils.

Figure 1: Front view of the Winix L200 Ultrasonic Humidifier. The image displays the unit's sleek black design, the transparent water tank section, and the digital control panel at the bottom. The control panel shows a digital reading of "55%" and various icons for power, mist level, warm mist, UV+ LED, timer, and night light settings.
Key Features:
- Large Capacity: 2-gallon water tank for extended operation.
- Long Runtime: Up to 120 hours of continuous mist output.
- Dual Mist Options: Provides both cool and warm mist.
- UV+ LED Technology: Helps reduce bacteria in the water.
- Aromatherapy: Includes pre-soaked aroma pads for essential oil diffusion.
- User-Friendly Design: Top-fill water tank and integrated carry handle for easy refilling and cleaning.
- Adjustable Settings: Customizable mist level, direction, and night light.
- Safety Auto Shut-off: Automatically turns off when water level is low.
Setup
- Unpack: Carefully remove the humidifier from its packaging. Retain packaging for future storage or transport.
- Placement: Place the humidifier on a flat, stable, and water-resistant surface. Ensure it is at least 12 inches (30 cm) away from walls, furniture, and electronic devices to prevent moisture damage.
- Initial Rinse: Before first use, rinse the water tank and base with cool water. Do not use detergents or abrasive cleaners.
- Fill Water Tank:
- Remove the top cover.
- Fill the water tank directly from the top opening with clean, cool tap water or distilled water. Do not exceed the maximum fill line.
- Replace the top cover securely.
- Power Connection: Plug the power cord into a standard 120V AC electrical outlet.
Operation
Control Panel:
The control panel features a digital display and touch-sensitive buttons for various functions.
- Power Button (⏻): Turns the humidifier on or off.
- Mist Level Button (≡): Adjusts mist output from level 1 to 5.
- Warm Mist Button (☼): Activates or deactivates the warm mist function.
- UV+ LED Button (UV+): Turns the UV+ LED sanitization feature on or off.
- Timer Button (⏱): Sets the operating timer (e.g., 2, 4, 8 hours).
- Night Light Button (☀): Controls the intensity of the night light or turns it off.
- Humidity Setting Button (●): Allows setting a desired humidity level (e.g., 40% - 60%). The unit will automatically adjust mist output to maintain this level.
Operating Instructions:
- Power On: Press the Power button (⏻) to turn on the humidifier. The default mist level will activate.
- Adjust Mist Level: Press the Mist Level button (≡) repeatedly to cycle through mist output levels (1 to 5).
- Warm Mist Function: Press the Warm Mist button (☼) to activate the warm mist. The indicator light will illuminate. Press again to turn off. Allow a few minutes for the mist to warm up.
- UV+ LED Sanitization: Press the UV+ LED button (UV+) to activate the internal UV+ LED light, which helps sanitize the water. The indicator light will illuminate. Press again to turn off.
- Set Timer: Press the Timer button (⏱) to select an operating duration (e.g., 2, 4, 8 hours). The humidifier will automatically turn off after the selected time.
- Night Light: Press the Night Light button (☀) to adjust the brightness of the internal night light or turn it off.
- Set Desired Humidity: Press the Humidity Setting button (●) to set your desired humidity level (e.g., 40%, 45%, 50%, 55%, 60%). The unit will automatically maintain this level by adjusting its mist output.
- Aromatherapy with Aroma Pads:
- Locate the aroma pad tray, typically found on the side or back of the unit.
- Open the tray and insert one of the included pre-soaked aroma pads.
- Close the tray. The aroma will diffuse with the mist. Replace pads as needed.
- Adjust Mist Direction: The mist nozzle on top of the unit can be rotated to direct the mist flow as desired.
Maintenance
Regular cleaning is essential to prevent mineral buildup and ensure optimal performance and hygiene of your humidifier.
Daily Maintenance:
- Unplug the unit.
- Empty any remaining water from the tank and base.
- Rinse the tank and base with cool water.
- Refill the tank with fresh water before each use.
Weekly Cleaning:
- Unplug the Humidifier.
- Clean the Water Tank:
- Remove the top cover and empty the tank.
- Pour 2 cups of undiluted white vinegar into the tank. Swish it around to coat all interior surfaces.
- Let it stand for 20 minutes.
- Scrub the interior with a soft brush or cloth to remove mineral buildup.
- Rinse thoroughly with clean water until the vinegar smell is gone.
- Clean the Base and Transducer:
- Carefully pour 1 cup of undiluted white vinegar into the water reservoir of the base, ensuring it covers the transducer (the small metal disc).
- Let it soak for 20 minutes.
- Gently clean the transducer and other surfaces with a soft brush or cotton swab to remove mineral deposits. Do not scrape the transducer.
- Empty the vinegar from the base and rinse thoroughly with clean water. Do not immerse the base in water.
- Demineralization Capsules: The unit includes demineralization capsules. Place one capsule in the water tank to help prevent mineral buildup and extend the life of the humidifier. Replace the capsule every 30-40 fillings or as indicated by the manufacturer.
- Drying: Wipe all surfaces dry with a clean cloth before reassembling.
Storage:
When storing the humidifier for an extended period, ensure all parts are clean and completely dry. Store in a cool, dry place, preferably in its original packaging.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or very little mist. |
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| White dust around the humidifier. |
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| Unusual odor. |
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| Water leakage. |
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| Humidifier automatically shuts off. |
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Specifications
- Model: L200
- Brand: Winix
- Operation Mode: Ultrasonic
- Color: Black
- Water Tank Capacity: 2 Gallons (approx. 7.5 Liters)
- Runtime: Up to 120 hours (depending on mist level and settings)
- Coverage Area: Up to 600 Square Feet
- Product Dimensions (D x W x H): 8.5" x 10.6" x 14.6" (21.6 cm x 26.9 cm x 37.1 cm)
- Item Weight: 7.92 pounds (3.6 kg)
- Voltage: 120V
- Wattage: 70 Watts
- Special Features: Programmable, Warm Mist, UV+ LED, Aroma Pad Tray, Auto Shut-off
- Included Components: Humidifier unit, Pre-Soaked Aroma Pads, Demineralization Capsules
Warranty and Support
The Winix L200 Ultrasonic Humidifier comes with a 1-year manufacturer's warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal household use.
This warranty does not cover damage resulting from misuse, neglect, accident, improper installation, unauthorized repairs, or use with improper voltage.
For warranty claims, technical assistance, or general inquiries, please refer to the contact information provided in your product packaging or visit the official Winix website for customer support details.
Please have your model number (L200) and proof of purchase available when contacting support.





