66900 - Humidifier Lund - Free user manual and instructions

Product type	Ultrasonic humidifier with aroma diffuser
Brand	Lund
Model	66900
Nominal voltage	5 V DC
Nominal current	650 mA
Water tank capacity	100 ml
Steam flow rate	15 ml/h
Recommended working area	15 m²
Weight	0.1 kg
Functions	Intermittent mode (30s on/off), continuous mode, 3h timer, automatic shut-off
LED lighting	Multicolor with automatic color change and manual intensity control
Safety	Water level sensor, automatic shut-off when water runs out, cool mist
Maintenance	Clean the tank every 3 days with citric acid
Power supply	Detachable USB cable, mains adapter 5 V / 0.5 A minimum
Using fragrances	Add fragrances compatible with ultrasound, mixed with water

Frequently Asked Questions - 66900 Lund

How to clean the humidifier?

Empty the tank every three days. Clean with a mixture of one tablespoon of citric acid and 100 ml of hot water (max 70°C) for 5 minutes, then rinse. Wipe with a soft cloth. Never immerse the base.

Can I use essential oils?

Yes, but only fragrances designed for ultrasonic devices. Mix the fragrance with water outside the device before pouring into the tank. Follow the proportions indicated on the bottle.

Does the device stop by itself after a few hours?

Yes, in timer mode (3 hours) or if the tank is empty. The water level sensor automatically stops the ultrasonic generator. Do not exceed 6 hours of continuous operation.

What water to use?

Use cold water (max 35°C). Hot water can deform the tank and cause burns. Avoid distilled or demineralized water if not recommended by the fragrance manufacturer.

How to turn on the LED lighting?

Press the LIGHT button. The first press activates automatic color change, subsequent presses set a color, and a long press turns off the lighting.

What to do if the device produces no mist?

Check that the tank has enough water and the lid is properly closed. Ensure the device is on (LED lit). If the indicator is off, press the MIST button several times to select a mode.

Can I leave the device running all night?

It is not recommended to leave the device unattended. Use the timer mode (3h) if you want extended use. After 6 hours, turn off the device for at least one hour.

How to empty the tank?

Unplug the device, open the lid and empty the water. Never keep water in the tank for more than three days to prevent microbial growth. Clean regularly.

Is the device noisy?

Operation is silent. The fan noise is low. In intermittent mode, 30-second pauses reduce noise.

Where to place the humidifier in the room?

Place the device on a flat, hard, dry surface, at least 0.5 m below the mist outlet. Keep away from walls, curtains and electronic devices. Ensure the cord does not pose a tripping hazard.

USER MANUAL 66900 Lund

Close-up of a cylindrical electronic device with a circular vent pattern and a coiled cable attached (no visible text or symbols)

Close-up of a hand holding a white cylindrical object with a small inset showing a small object, labeled 'IVIII' in the corner (no other text or symbols visible)

Clean the water tank every three days

Read the operating instruction

1. base
2. lid
3. steam outlet
4. water tank
5. control buttons
6. power cordl

D

This symbol indicates that waste electrical and electronic equipment (including batteries and storage cells) cannot be disposed of with other types of waste. Waste equipment should be collected and handed over separately to a collection point for recycling and recovery, in order to reduce the amount of waste and the use of natural resources. Uncontrolled release of hazardous components contained in electrical and electronic equipment may pose a risk to human health and adverse effects for the environment. The household plays an important role in contributing to reuse and recovery, including of waste equipment. For more information about the appropriate recycling methods, contact your local authority or retailer.

The aroma diffuser is a device which humidifies the air while spraying the fragrances added to the water in the device's tank. Steam is produced by means of ultrasound, so it is not hot and contact with it does not pose a risk of burns.

Read the entire manual before the first use of the device, and keep it for future reference.

The supplier shall not be liable for any damage resulting from failure to comply with the safety instructions and recommendations specified in this manual.

ACCESSORIES

The device is delivered complete but requires some preparatory activities before use. The device comes with a detachable power cord. The fragrances are not included.

SAFETY INSTRUCTIONS

Caution! Read all of the following instructions. Failure to do so may result in electrocution, fire, or personal injury.

FOLLOW THE INSTRUCTIONS BELOW

Do not use the product in an explosive environment containing flammable liquids, gases, or vapours. Make sure that the mains power parameters comply with the ones shown on the device's nameplate before connecting the device to the power supply. Before starting the device for the first time, make sure that the device, its accessories, and the power cord have not been damaged. Operating the device is forbidden if any damage is discovered. Any damaged components, including the power cord, must be replaced at an authorised facility. It is forbidden to repair the device on your own. The device is intended for indoor use only. Do not expose the device to any precipitation or moisture. The risk of electric shock is significantly increased if water and moisture enters the device. Do not immerse the product in water or any other liquid. Set the device on flat, even, and hard surfaces.

The surface should be clean as the vents, through which the air is sucked in by the device, are located at the base of the device; situations where any contaminants are sucked into the device together with air must be avoided. Contaminants can damage the device or

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cause fire and/or electric shock. The location for setting the device should be chosen so that the steam jet can freely humidify the air in the room. Warning! The steam outlet must not be obstructed. A minimum of 0.5 m free space above the device must be maintained so that the steam jet can escape freely. Select the location which will ensure that the power cord does not pose a risk of tripping or moving the device. When filling and cleaning the device, remove the device's power plug. Fill the device's tank with cold water only – water temperature should not exceed 35°C. Filling with hot water can cause burns and deformation of the plastic tank. Do not use flammable substances such as alcohols or solvents to fill the tank. The device's tank should be filled so that the water level does not exceed the maximum level marked on the tank wall. Overfilling the tank is forbidden. Only pure water or water mixed with a fragrance may be poured into the tank. If fragrances are used, they must be added to water outside the device, mixed and then poured into the device's tank. Use only fragrances designed for ultrasonic devices. The fragrances must be mixed with water in the proportions specified in the instructions accompanying the fragrance. Read the entire content of the fragrance instructions before use. After each application, unplug the power cord plug from the socket. Always disconnect the device from the power supply, if it is left unattended, and before putting it away, disassembling, cleaning or filling with water. Do not leave the device unattended when it is connected to the power supply. Do not overload the power cord. Do not use the power cord to carry the device, or connect or disconnect the plug from the socket. Avoid any contact between the power cord and heat sources, oil, sharp edges or moving parts. Damage to the power cord increases the risk of an electric shock. If the power cord is damaged (e.g. it is cut or its insulation is melted), immediately unplug it from the socket and return the device to an authorised service facility. It is forbidden

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to use the product with a damaged power cord. Repairing the power cord is forbidden. It must be replaced with a new one at an authorised service centre. Use only with the attached power supply unit. Using other power supply units is not allowed. The product must be kept under supervision at all times during operation. Do not leave the device unattended if it is connected to the power supply. The device is not to be used by children. Keep the device and its power cord out of the reach of children. It is important to ensure that children do not see the device as a toy. Children should not be allowed to clean or perform maintenance activities on the device without supervision. This device cannot be used by people with impaired physical and/or mental abilities, or by people without experience in or understanding of the operation of the device, unless they are supervised or instructed on how to safely operate the device so that they understand the relevant operating risks. The water tank cannot be opened during use. Do not use the device if it has been dropped, if there are visible signs of damage, or if it is leaking. It is important to be aware that high humidity levels can promote the growth of biological organisms in the surroundings. Do not allow the area around the humidifier to become wet or damp. If moisture is discovered, turn off the humidifier. Use the humidifier in intervals if it cannot be switched off. Moisture-absorbing materials such as carpets, curtains, drapes or tablecloths should not be allowed to become damp. Do not leave water in the tank when the device is not operating. Empty and clean the humidifier before storage. Clean the humidifier before next use.

USING THE DEVICE

Preparing the device for use

Unpack the device and remove all packaging components. It is recommended to keep the packaging for later storage. Clean the water tank, the lid, and housing according to the instructions found in the “Device maintenance” section.

Put the power cord plug into the socket on the base of the device (II). Do not connect the plug at the other end of the cord to the power supply yet. Set the device in the location where it will be used. Remove / open the device's lid (III). Fill the device's tank with water or a mixture of water and fragrance. Reattach / close the lid so

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that it fits the device housing's entire circumference (IV). Connect the device to the power supply by inserting the power cord plug into the socket. The device is ready for use.

Warning! Never move the device with a filled tank.

The USB plug can be plugged into a socket in the computer's housing or into a power supply unit with a current capacity of at least 0.5A equipped with a USB socket.

Using the device

The device has two buttons. The button described MIST or MIST / TIMER is used to start the emission of the steam stream. The first press of the button starts the intermittent operation mode: 30 seconds of emission, then 30 seconds of pause. During the interruption, the ultrasound generator is turned off, but the device may still emit steam accumulated during the generator's operation. This mode is used to reduce steam emissions when such intensive air humidification is not required. This is indicated by the lighting of the dark green diode. Another press starts continuous operation. This is indicated by the lighting of the light-green diode. Another press of this button activates the steam emission mode for 3 hours, after which the device automatically turns off. This is indicated by the red LED lighting up. Pressing the button again turns the device off. The signaling diode is turned off and steam emission stops.WARNING! Do not exceed 6 hours of continuous steam emission. After this time, switch off the device for at least one hour.

The device is switched off by pressing the “MIST” or “MIST/TIMER” button several times so that none of the operating modes are illuminated. The steam emission will be stopped and the quiet hum of the device’s fans will no longer be heard.

The device has a sensor to check whether there is water in the tank. If a lack of water is detected in the tank, the device will not start the ultrasonic generator.

The “LIGHT” button turns on the backlight and allows to control it. The first press of the button activates the automatic backlight colour change mode, the next press stops the automatic backlight colour change and leaves the backlight in the selected colour. The next press of the “LIGHT” button changes the intensity and colour of the backlight. The backlight is switched off by pressing and holding the “LIGHT” button until the backlight is switched off.

DEVICE MAINTENANCE

Caution! All maintenance works must be carried out with the device's electric power supply disconnected. Pull the plug from the power socket and disconnect the cord from the device.

Carefully open/remove the lid and pour water out of the device's tank. Water should be removed from the tank not less frequently than every three days. Do not keep the water in the tank due to the possibility of growth of microorganisms. Before refilling, clean the tank with clean water. Remove any scale, sediments or film which has accumulated on the walls or inside the tank. Then wipe the tank dry. Pour one tablespoonful of citric acid into the tank and 100 ml of warm water with the temperature not exceeding 70°C. Mix the acid and leave the solution in the tank for 5 minutes. Next, empty the tank, rinse with clean water, and wipe dry omitting the opening in the bottom of the tank under which the ultrasonic generator is mounted. This manner of maintaining the tank will allow to keep it clean, reduce the growth of microorganisms, and prevent the build-up of scale in the tank. Never use solvents, acids, or alcohol for cleaning. Clean the base and the lid with a soft, damp cloth. Never immerse the device in water or any other liquid. After cleaning, leave the lid and the base with the tank to dry completely. Store the device in a place protected from dust, moisture, and direct sunlight. Before first use, wipe the inside of the tank with a damp cloth.

TECHNICAL DATA

Parameter Unit Value
Catalogue No. 66900
Rated voltage [VDC] 5
Rated current [mA] 650
Container capacity [ml] 100
Steam emission capacity [ml/h] 15
Operation area [m]	^2 ]	15
Weight [kg] 0.1

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