User Manual Ultrasonic Humidifier K7 Humidifier
Description and appearance
To support health, it is important to stay in indoor environments with normal humidity. An air humidifier is essential for people with asthma, allergies, and other respiratory conditions, as well as families with young children. The humidifier helps neutralize the negative effects of household dust and improves a child’s sleep.
The desktop K7 Humidifier with a 3000 ml water tank and a spraying rate of 375 ml/h provides extended humidification. It offers two atomization modes—continuous and intermittent. In continuous mode, the device operates for up to 4 hours. In intermittent mode, humidification lasts up to 6 hours.
.Device specifications
Product name: K7 Humidifier Colorful USB
Type: Air humidifier
Model: K7
Primary color: White
Humidifier type: Steam
Recommended area: 30 m²
Installation: Desktop
Maximum continuous operating time: 8 h
Noise level: 30 dB
Water consumption: 375 ml/h
Water tank capacity: 3 L
Hygrostat: No
Evaporation intensity adjustment: Yes
Steam flow direction adjustment: No
Top-fill: Yes
Operating modes: Automatic mode
Ionization: No
Ozonation: No
Aromatherapy: Yes
Air filter: Yes
Water preheating: No
Ultraviolet sterilization: No
Antibacterial tank coating: No
Control type: Mechanical
Remote control: No
Timer: No
Housing backlight: Yes
Power supply: USB
Width: 130 mm
Height: 250 mm
Depth: 130 mm
Weight: 0.8 kg
Package contents
Air humidifier model Humidifier K7
Documentation
USB cable
Filter x 2 pcs.
Preparing the humidifier for use
Before first use
Before use, remove the cotton filter and soak it in water for 1–2 minutes. To do this, remove the tank lid, take out the plastic tube (cartridge) with the cotton insert from the inside of the lid, and fully immerse the cotton filter in water.
Then insert the cotton filter into the opening with the spring below it (under the filter). Ensure the upper end of the cotton filter fits securely into the hole on the inner side of the lid. Fix the cartridge with the filter onto the inner side of the lid.
Fill the tank with water and reinstall the lid.
Before subsequent use
Open the top lid of the humidifier.
Fill the container with water up to the maximum level mark. Install the lid back onto the water tank.
Wait 10 minutes before using the device. Connect the power cable to the humidifier’s USB port. Connect the other end to a 5 V power adapter (not included), a computer, laptop, or power bank.
Switch on the humidifier.
K7 Humidifier operating modes
Humidifier operation
1. Press the button to start continuous spraying.
2. Press again to start intermittent spraying (3 seconds on, 3 seconds off).
3. Third press: alternating spray mode.
4. Fourth press: device off.
Night light operation
1. Press and hold the button for 3 seconds to switch on warm white night light.
2. Press and hold again for 3 seconds to activate gradual cycling through 7 colors.
3. Press and hold once more for 3 seconds to turn the light off.
Auto shut-off
1. 4 hours with automatic shut-off for continuous mode.
2. 6 hours with automatic shut-off for intermittent mode.
Safety precautions
Do NOT add water directly through the mist outlet, as this will damage the device.
Do not place the device near heat sources such as stoves, radiators, or heaters.
For best results, position the humidifier at least 10 cm from walls and 60 cm above the floor.
Use a power source that meets the rated current of the product/charger. Improper power supply may cause device failure.
Place the product on a solid, level, stable, and dry surface before use.
Do not use the device if it malfunctions, has been dropped, damaged, or immersed in water.
Do not attempt to modify or repair the device yourself. All repairs must be performed by qualified personnel only.
Ensure at least 50 cm of clearance above the mist outlet.
Never tilt, move, or attempt to empty the device while it is operating.
Slight odors may occur during initial use (up to 12 hours) until stable operation is reached.
Switch off and unplug the device before refilling the tank or moving the device.
Never use detergents, gasoline, glass cleaner, furniture polish, paint thinner, or other household solvents to clean any part of the humidifier.
Excess humidity may cause condensation on windows and furniture. In such cases, switch off the humidifier.
This device may be used by children aged 8 and older and by persons with reduced physical, sensory, or mental capabilities or lack of experience and knowledge only under supervision or after instruction on safe use. Children must not play with the device. User cleaning and maintenance must not be performed by children unless they are over 8 and supervised.
Never operate the device with an empty tank; doing so may cause damage.
Please use clean tap or mineral water. Distilled water is not recommended as it may reduce humidification performance.
Ensure the water tank is filled to no more than 90% of its capacity.
.Troubleshooting
No humidification effect or reduced mist output: the main tank is empty and requires refilling.
Steam has an odor: check water quality, replace the water, and change the cotton filter.
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