Introduction
Thank you for purchasing the pasapair 6L Multifunctional Ultrasonic Humidifier. This manual provides important information regarding the safe operation, installation, maintenance, and troubleshooting of your new humidifier. Please read this manual thoroughly before use and retain it for future reference.
Safety Instructions
WARNING: Failure to follow these safety instructions may result in fire, electric shock, injury, or damage to the product.
- Always place the humidifier on a firm, flat, water-resistant surface away from walls and heat sources.
- Do not immerse the base unit in water or other liquids.
- Unplug the humidifier before filling, cleaning, or moving it.
- Do not operate the humidifier with a damaged cord or plug.
- Keep out of reach of children and pets.
- Use only clean, cool tap water. Distilled or demineralized water is recommended to prevent mineral buildup.
- Do not add essential oils directly into the water tank; use the designated essential oil tray.
- Ensure the mist nozzle is not directed at furniture, appliances, or walls.
- Do not block air vents.
Product Overview
The pasapair 6L Multifunctional Ultrasonic Humidifier is designed to provide optimal humidity levels in rooms up to 70 m², offering both cool and warm mist options, an essential oil diffuser, and smart features for enhanced comfort.

Image: Front view of the pasapair 6L Humidifier, highlighting its control panel and key features such as 6L capacity, top filling, cool & warm mist, low noise, auto mode, 3-level mist, 1-12 hour timer, remote control, and sleeping mode.
Key Features:
- 6L Large Capacity: Provides up to 55 hours of continuous operation on low mist setting.
- Top Filling Design: Easy and convenient water refilling.
- Cool & Warm Mist: Choose between cool mist for general humidification or warm mist for added comfort in colder seasons.
- Automatic Mode: Built-in sensor adjusts mist output based on ambient humidity.
- 3 Mist Levels: Manual selection of low, medium, or high mist output.
- Essential Oil Tray: Use as an aroma diffuser by adding essential oils to the dedicated tray.
- Ultra-Quiet Operation: Operates at less than 35 dB, suitable for bedrooms.
- 1-12 Hour Timer: Set the humidifier to turn off automatically after a specified duration.
- Auto Shut-Off: Automatically turns off when water level is low for safety.
- Remote Control: Convenient operation from a distance.
- Water Purification Filter: Enhances humidification health.

Image: The humidifier showcasing its 6-liter visible water tank capacity, illustrated with six 1-liter bottles to demonstrate the volume.

Image: The humidifier functioning as both a humidifier and diffuser. Insets show the UV light for water purification, the essential oil tray, and the water filter component.
Setup
- Unpack: Carefully remove all packaging materials and place the humidifier on a flat, stable surface.
- Positioning: Place the humidifier at least 12 inches (30 cm) away from walls, furniture, and electronic appliances. Ensure the mist outlet is not directed at any objects.
- Fill Water Tank:
- Remove the top cover.
- Pour clean, cool tap water directly into the water tank through the top opening. Do not exceed the MAX fill line. Distilled or demineralized water is recommended to minimize mineral buildup.
- Replace the top cover securely.

Image: Illustration of the top-filling design, showing a hand pouring water directly into the humidifier's water tank from the top. This highlights the ease of adding water compared to traditional bottom-fill models.
- Connect Power: Plug the power cord into a standard electrical outlet. The display will light up, indicating the unit is in standby mode.
Operating Instructions
Control Panel and Remote Control:
The humidifier can be operated using the touch control panel on the front of the unit or the included remote control. The functions are identical.
Basic Operation:
- Power On/Off: Press the Power button to turn the humidifier on or off. The display will show the current humidity and temperature.
- Mist Level Adjustment: Press the Mist button repeatedly to cycle through 3 mist output levels: Low, Medium, High.
- Automatic Mode: Press the Auto button to activate automatic humidification. The humidifier will automatically adjust mist output to maintain a comfortable humidity level based on the ambient environment.
- Warm/Cool Mist Selection: Press the Warm Mist button to switch between cool mist and warm mist. The warm mist function heats the water before atomization.
- Timer Setting: Press the Timer button repeatedly to set the operating time from 1 to 12 hours. The humidifier will automatically turn off when the set time expires.
- Sleep Mode: Press the Sleep button to enter sleep mode. The display lights will dim, and the humidifier will operate quietly at a low mist setting.
- UV Light: Press the UV button to activate or deactivate the UV water purification function.

Image: Visual representation of the humidifier producing both warm mist (indicated by red wavy lines) and cool mist (indicated by blue snowflake icon), demonstrating its dual mist capability.

Image: Three humidifiers illustrating the three mist levels (Small, Medium, Large) and their corresponding automatic mode humidity ranges (60-70% RH for Level 1, 40-60% RH for Level 2, below 40% RH for Level 3).
Using the Essential Oil Tray:
- Locate the essential oil tray on the side or back of the humidifier.
- Pull out the tray.
- Add 5-10 drops of your preferred essential oil onto the aroma pad inside the tray. Do not add oils directly into the water tank.
- Slide the tray back into the humidifier. The aroma will diffuse with the mist.
Maintenance
Regular cleaning is essential for optimal performance and to prevent mineral buildup and bacterial growth.
Daily Maintenance:
- Unplug the humidifier.
- Empty any remaining water from the tank and base.
- Rinse the water tank and base with fresh water.
- Wipe all surfaces dry with a clean cloth.
Weekly Cleaning (or every 3-5 days with hard water):
- Descaling the Water Tank and Base:
- Unplug the humidifier.
- Mix 1 teaspoon of white vinegar with 1 cup of water.
- Pour the solution into the water tank and base. Let it soak for 20-30 minutes.
- Use the provided cleaning brush or a soft cloth to gently clean the inside of the tank and the ultrasonic nebulizer (mist outlet).
- Rinse thoroughly with clean water until the vinegar smell is gone.
- Cleaning the Essential Oil Tray:
- Remove the essential oil tray.
- Wipe the tray and aroma pad with a soft cloth. If heavily soiled, rinse with mild soap and water, then dry completely.
Storage:
When storing the humidifier for an extended period, ensure all parts are clean and completely dry. Store in a cool, dry place.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or low mist output |
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| Unusual odor |
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| Water leakage |
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| Humidifier turns off unexpectedly |
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Specifications
| Brand | pasapair |
| Model Number | PH-405-31 |
| Color | White |
| Capacity | 6 Liters |
| Voltage | 230V (AC) |
| Material | Plastic |
| Operating Time | Up to 55 hours (low mist) |
| Special Features | Timer, Diffuser, Remote Control, Quiet Operation, Warm/Cool Mist, Auto Shut-off, UV Light |
| Manufacturer | CJH |
| Applicable Floor Area | Up to 70 square meters |
| Operating Mode | Automatic |
| Included Components | Remote control, essential oil tray, wide-neck water tank, cleaning brush, user manual |
Warranty and Support
This product comes with a standard manufacturer's warranty. For detailed warranty information, please refer to the warranty card included in the packaging or contact your retailer.
For technical support, troubleshooting assistance, or replacement parts, please contact pasapair customer service. Contact information can typically be found on the product packaging or the official pasapair website.
Please have your model number (PH-405-31) and purchase date ready when contacting support.