1. Introduction
This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your KQLKJ 350ml Portable Mini Humidifier (Model KQ-38). Please read these instructions thoroughly before using the device and retain them for future reference.

Image 1.1: KQLKJ 350ml Portable Mini Humidifier (White)
2. Product Overview
2.1 Key Features
- Ultra-Portable Design: Compact 350ml capacity, ideal for desks, cars, offices, and travel.
- Automatic Shut-Off: Prevents dry burning for enhanced safety.
- Two Mist Modes: Continuous spray (3 hours) and intermittent spray (5 seconds on/5 seconds off, 7 hours).
- Quiet Operation: Operates at less than 25dB, suitable for sleeping or working environments.
- Cool Mist Technology: Safe for children and plants, eliminating burn risks.
- Skin Moisturization: Helps alleviate dry skin and reduce peeling.
- One-Click Control: Simple push-button operation for mist settings.
- USB Power Supply: Conveniently powered via USB Type-C cable.
2.2 Components
The humidifier consists of the main unit, a water tank, a filter wick, and a USB Type-C cable.

Image 2.1: Humidifier and included accessories.
3. Setup Instructions
- Disassemble the Unit: Gently twist and lift the top cover from the water tank.
- Prepare the Filter Wick: Remove the filter wick from its housing. Submerge the wick completely in water for a few minutes until it is fully saturated. This is crucial for proper mist production.
- Fill the Water Tank: Fill the transparent water tank with clean tap water. Do not exceed the maximum fill line (350ml). Avoid adding essential oils directly into the water tank as this may damage the unit.
- Reassemble the Unit: Place the saturated filter wick back into its housing and securely attach the top cover to the water tank. Ensure it is properly aligned.
- Connect Power: Plug the provided USB Type-C cable into the port on the back of the humidifier and connect the other end to a compatible USB power source (e.g., computer, power bank, USB wall adapter).

Image 3.1: Filling the water tank.
4. Operating Instructions
- Power On/Continuous Mist: Press the power button once to turn on the humidifier. It will start in continuous mist mode, indicated by a single beep. This mode automatically shuts off after 3 hours.
- Intermittent Mist: Press the power button a second time to switch to intermittent mist mode (5 seconds on, 5 seconds off), also indicated by a single beep. This mode automatically shuts off after 7 hours.
- Power Off: Press the power button a third time to turn off the humidifier.
- Automatic Shut-Off: The device will automatically power off when the water level is low or when the set operating time for the mist mode is reached.
- Light Feature: The humidifier features a rotating color light. This light cannot be independently turned off while the unit is operating.

Image 4.1: Continuous mist mode.

Image 4.2: Intermittent mist mode.
Video 4.1: Personal Mini Humidifiers in action.
Video 4.2: Easy to use mini humidifiers demonstration.
5. Maintenance
Regular cleaning and maintenance are essential to ensure optimal performance and longevity of your humidifier.
- Daily Cleaning: Empty any remaining water from the tank daily. Wipe the inside of the water tank and the top cover with a clean, damp cloth.
- Weekly Deep Cleaning: For a more thorough cleaning, disassemble the unit. Clean the water tank and the inside of the top cover with a mild detergent and rinse thoroughly. Ensure all parts are dry before reassembling.
- Filter Wick Replacement: The filter wick should be replaced regularly, typically every 1-3 months depending on usage and water quality, or if you notice reduced mist output or an unpleasant odor. The product includes extra filter wicks.

Image 5.1: Cleaning the humidifier components.
6. Troubleshooting
- No Mist or Low Mist Output:
- Ensure the water tank is filled to an adequate level.
- Check if the filter wick is fully saturated. If dry, soak it in water for a few minutes.
- Replace the filter wick if it appears dirty, discolored, or has been used for an extended period.
- Ensure the top cover is securely attached and aligned.
- Humidifier Not Turning On:
- Verify the USB Type-C cable is securely connected to both the humidifier and the power source.
- Ensure the power source is functional (e.g., try a different USB port or wall adapter).
- Check if the water level is too low, triggering the automatic shut-off.
- Light Cannot Be Turned Off:
- The rotating color light feature is integrated with the humidifier's operation and cannot be independently turned off.
7. Specifications
| Brand | KQLKJ |
| Model Name | KQ-38 |
| Special Feature | Auto Shut Off |
| Color | White |
| Operation Mode | Ultrasonic |
| Product Dimensions | 3.8"D x 3.8"W x 6.5"H |
| Item Weight | 0.2 Kilograms (7 ounces) |
| Room Type | Bedroom |
| Included Components | Type-C cable |
| Wattage | 5 watts |
| Control Method | Push Button |
| Shape | Rectangular |
| Manufacture Year | 2024 |
8. Warranty and Support
This KQLKJ humidifier comes with a 1-year warranty from the date of purchase, covering manufacturing defects. For warranty claims, technical support, or any inquiries regarding your product, please contact KQLKJ customer service through the retailer's platform or the official brand website.
Please retain your proof of purchase for warranty validation.