1. Introduction
Thank you for choosing the PerfectAire 1.3 Gallon Cool Mist Ultrasonic Humidifier. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new appliance. Please read these instructions thoroughly before use and retain them for future reference.
This ultrasonic humidifier uses high-frequency vibration to create a fine cool mist, effectively adding moisture to the air for improved comfort and air quality.
2. Product Overview
The PerfectAire PAU13 humidifier features a compact design with easy-to-use controls. It is designed to provide consistent cool mist output for medium-sized rooms.

Key Features:
- Cool Mist Technology: Produces a visible cool mist to humidify your space.
- Whisper-Quiet Operation: Designed for minimal noise, ideal for bedrooms.
- Adjustable Mist Output: Allows you to control the mist intensity.
- Auto Shut-Off: Automatically turns off when the water tank is empty.
- Water Less Indicator: Alerts you when the water level is low.
- Easy Fill Design: Simplifies the refilling process.
- Antimicrobial Tank: Helps prevent the growth of mold and mildew.
- Night Light Option: Integrated night light for added convenience.
3. Setup
Unpacking and Placement:
- Carefully remove the humidifier from its packaging.
- Place the humidifier on a firm, flat, waterproof surface at least 6 inches away from walls and furniture.
- Ensure the mist outlet is not directed towards walls or furniture to prevent moisture damage.
Filling the Water Tank:
- Lift the water tank from the base using the handle.
- Unscrew the water tank cap located at the bottom of the tank.
- Fill the tank with clean, cool tap water. For best results and to minimize mineral buildup, use distilled or demineralized water. Do not fill past the 'MAX' line indicated on the tank.
- Securely screw the water tank cap back on.
- Place the filled water tank back onto the humidifier base, ensuring it is seated correctly.

4. Operating Instructions
Power On/Off and Mist Control:
- Plug the power cord into a 120V AC electrical outlet. The power indicator light will illuminate.
- Turn the control knob clockwise to turn the humidifier ON and adjust the mist output level. Turn the knob counter-clockwise to decrease the mist output and turn the humidifier OFF.
- The humidifier will begin producing cool mist immediately.

Night Light Function:
- The humidifier includes an easy on/off night light option. Refer to the control panel for the specific night light button or setting.
Auto Shut-Off Feature:
- The unit is equipped with an automatic shut-off feature that activates when the water tank is empty. The 'Water Less Indicator' will illuminate to signal that the tank needs refilling.
Adjustable Output Direction:
- The mist nozzle on top of the humidifier can be rotated 360° to direct the mist flow in any desired direction.
Official Product Video:
5. Maintenance and Cleaning
Regular cleaning is crucial for maintaining the efficiency and longevity of your humidifier. Mineral deposits from water can accumulate and affect performance.
Daily Maintenance:
- Empty the water tank and base reservoir daily.
- Rinse the tank and reservoir with clean water.
- Allow all parts to air dry before reassembling or refilling.
Weekly Descaling:
- Unplug the humidifier and empty any remaining water.
- Pour 2 cups of undiluted white vinegar into the water tank and base reservoir.
- Let it soak for 20-30 minutes to loosen mineral deposits.
- Use a soft brush or cloth to clean the inside of the tank and reservoir.
- 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.
Filter Information:
- This humidifier model (PAU13) is designed with no filter to replace, simplifying maintenance.
6. Troubleshooting
If your humidifier is not operating as expected, please consult the following common issues and solutions:
| Issue | Possible Cause | Solution |
|---|---|---|
| No mist or low mist output | Water tank empty or low water level. Mineral buildup on transducer. | Refill water tank. Clean the transducer and base reservoir as per maintenance instructions. |
| Unusual odor | Stagnant water or dirty tank. | Empty and clean the water tank and base reservoir. Use fresh water daily. |
| Water leaking from unit | Water tank cap not tightened. Tank not seated correctly on base. | Ensure water tank cap is securely tightened. Re-seat the water tank firmly onto the base. |
7. Specifications
| Feature | Detail |
|---|---|
| Brand | PerfectAire |
| Model Name | Perfect Aire® 1.3 Gallon Table Top Micro Mist® Humidifier |
| Model Number | PAU13 |
| Moisture Dispersion Type | Cool mist |
| Control Type | Electro-Mechanical |
| Water Vapor Output | 2.2 gal/day |
| Assembled Width | 12-1/2 in. |
| Assembled Depth | 7-1/2 in. |
| Product Dimensions | 12.5 x 7.5 x 11 inches |
| Item Weight | 5 pounds |
| Wattage | 30 watts |
| UPC | 842149024000 |
| Room Type | Bedroom, Living Room |
| Filter Required | No |
8. Warranty and Support
For warranty information or technical support, please contact PerfectAire directly:
- Email: support@perfectaire.us
- Phone: 866.896.9255
