Westinghouse WSHUJ2196
Westinghouse Ultrasonic Cool Mist Humidifier
Model: WSHUJ2196
Introduction
Thank you for purchasing the Westinghouse Ultrasonic Cool Mist Humidifier. This manual provides important information regarding the safe operation, setup, maintenance, and troubleshooting of your new humidifier. Please read this manual thoroughly before use and retain it for future reference.

Figure 1: Front view of the Westinghouse 4.5L Ultrasonic Cool Mist Humidifier.
Important Safety Information
Please read and understand all safety instructions before operating this appliance. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- This humidifier is for household use only. It is not suitable for commercial, industrial or outdoor use.
- Do not use an extension cord.
- Do not move the appliance when it is switched on and / or full of water.
- Always unplug the appliance immediately after use and before cleaning and storing.
- Do not immerse the appliance or electrical parts of the appliance in water or any other liquids.
- Do not add oil directly into the water tank or base of this humidifier to prevent damage, fire, or injury.
- Do not expose the appliance or electrical parts of the appliance to dripping or splashing water.
- Do not touch or operate the appliance with wet hands or while standing on a wet floor.
- Do not place this product close to a heat source to prevent damage, fire, or injury.
- Never allow the power cord to hang over the edge of a worktop or table or to touch any hot surface.
- Do not allow the power cord to touch any sharp edges or corners.
Product Overview
The Westinghouse Ultrasonic Cool Mist Humidifier consists of a base unit, a water tank, and a top lid with a mist nozzle. It features a simple rotary control knob for mist adjustment and a clear water level window.

Figure 2: The 360-degree rotating mist nozzle allows for directional mist output.
Setup
- Unpack the Humidifier: Carefully remove all components from the packaging. Ensure all packing materials, especially any small foam pieces in the base, are removed.
- Place on a Stable Surface: Position the humidifier on a firm, flat, water-safe surface away from direct sunlight, heat sources, and sensitive electronics. Ensure it is not placed on semi-uneven surfaces to prevent tipping.
- Fill the Water Tank: The humidifier features a convenient top-fill design. Remove the top lid and pour clean, cool water directly into the tank. For best results and to prevent mineral dust, use distilled water or tap water with less than 60mg/L hardness. Do not exceed the maximum fill line.
- Replace the Lid: Securely place the top lid back onto the water tank.
- Connect to Power: Plug the power cord into a standard 120V AC electrical outlet.

Figure 3: Easy top-fill design for convenient water replenishment.
Operating Instructions
- Power On/Off: Turn the rotary control knob clockwise to the 'ON' position to power on the humidifier. Turn it counter-clockwise to the 'OFF' position to power off.
- Adjust Mist Volume: Continue turning the rotary control knob clockwise to increase the mist output. Turn it counter-clockwise to decrease the mist output. Adjust the mist to maintain your desired humidity level.
- Adjust Mist Direction: The 360-degree rotating mist nozzle allows you to direct the mist flow. Simply rotate the top part of the nozzle to point the mist in any desired direction.
- Low Water Alarm: The humidifier is equipped with a low-water alarm feature. When the water level in the tank is low, the unit will automatically turn off, and an indicator light will illuminate, signaling that a refill is needed.
- Water Level Window: Monitor the water level through the transparent window on the front of the tank. Refill when the water level is low.

Figure 4: Manually adjust mist output to achieve ideal humidity levels.

Figure 5: The low-water alarm ensures safe operation and reminds you to refill.
Maintenance
Regular cleaning is essential to ensure optimal performance and hygiene of your humidifier.
- Daily Maintenance: Empty and rinse the water tank and base daily. Allow all parts to air dry before refilling.
- Weekly Cleaning:
- Unplug the humidifier and disassemble the tank and base.
- Fill the water tank with a mixture of equal parts white vinegar and water. Let it soak for 20-30 minutes to loosen mineral buildup.
- Use a soft brush or cloth to clean the inside of the tank and the base, paying attention to the ultrasonic transducer (the small disc in the base).
- Rinse all components thoroughly with clean water until the vinegar smell is gone.
- Wipe dry with a clean cloth or allow to air dry completely before reassembling.
- Water Quality: Using distilled or demineralized water is highly recommended to minimize mineral buildup and white dust output.
- Storage: If storing the humidifier for an extended period, ensure all parts are thoroughly cleaned and completely dry. Store in a cool, dry place.
Troubleshooting
If you experience issues with your humidifier, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or low mist output | No water in tank; Tank not properly seated; Mineral buildup on transducer; Air inlet blocked. | Refill tank; Re-seat tank firmly on base; Clean transducer as per maintenance instructions; Ensure air inlet is clear. |
| Unusual odor | Dirty water; Old water; Mineral buildup. | Empty and clean tank and base thoroughly; Use fresh, clean water. |
| White dust around humidifier | Hard water used. | Use distilled or demineralized water. Clean the area around the humidifier regularly. |
| Water leakage | Tank not properly seated; Overfilled tank; Damaged tank. | Re-seat tank; Do not overfill; Inspect tank for cracks or damage. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Westinghouse |
| Model Name | WSHUJ2196 |
| Operation Mode | Ultrasonic Cool Mist |
| Water Tank Capacity | 4.5 Liters |
| Runtime | 20 to 37 hours (depending on mist setting) |
| Coverage Area | Up to 200 Square Feet |
| Voltage | 120 Volts |
| Wattage | 22 Watts |
| Control Method | Rotary Knob |
| Special Features | Low Water Alarm, 360-degree Rotating Nozzle, Top-Fill Design, Quiet Operation |
| Item Weight | 2.64 Pounds |
| Dimensions | 15.2 x 9.2 x 9 inches (Package Dimensions) |
Warranty and Support
For warranty information or technical support, please refer to the warranty card included with your product or visit the official Westinghouse website. Please have your model number (WSHUJ2196) and purchase details ready when contacting support.
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