Lacidoll LCD-MH-2303A Ultrasonic Cool Mist Humidifier

Contact & Support

For assistance, please contact:

• Email: support@lacidoll.com
• Hours: Monday-Friday, 9 AM to 5 PM (EST)

Introduction

Thank you for choosing the Lacidoll Ultrasonic Cool Mist Humidifier. We hope you enjoy our product as much as we enjoyed designing it. Please read this manual carefully before use and keep it for future reference. All images are for illustrative purposes only; the actual product may vary due to continuous improvements.

For more details on installation, visit our website or scan the QR code: https://lacidoll.com/pages/user-manual

Table of Contents

The document is organized into the following sections:

• Safety Instructions
• Humidifier Overview
• Specifications
• Display & Controls
• Remote Control
• Usage
• Cleaning and Maintenance
• Troubleshooting
• Warranty Policy

Safety Instructions

General Safety

• Placement: Place the humidifier on a flat, stable, and waterproof surface. On wooden floors, use a waterproof mat to prevent humidity buildup. Maintain a distance of at least 30 cm (12 in) from walls or furniture.
• Temperature: Before first use, let the humidifier acclimate for 30 minutes. Operate between 5°C and 40°C (41°F to 104°F). If the temperature drops below 0°C (32°F), empty the water tank to prevent freezing.
• Keep away from heat sources: Do not place the humidifier near a stove, radiator, or in direct sunlight.
• Keep out of reach of children and pets: Install in an inaccessible location. Children should not use or clean the unit without supervision.
• Indoor use only: This product is designed for dry indoor use. Do not use outdoors or in humid environments.

Electrical Safety and Cord

• Power Cord: Do not pull, twist, or damage the cord.
• Plug and Outlet: Ensure the plug is securely inserted to prevent overheating.
• Unplug when not in use: Always unplug the humidifier before refilling, moving, cleaning, or during prolonged periods of non-use.

Special Precautions

• Avoid excessive humidification: If condensation appears on walls, windows, or near the unit, reduce mist output or turn off the humidifier.
• Do not inhale mist directly: Avoid inhaling the mist directly or directing it towards people or objects.
• Do not add substances: Do not add essential oils, medications, or other additives to the water tank or mist outlet, as this may damage the unit or harm health.

Maintenance and Repairs

• No user repairs: Do not disassemble, modify, or repair the humidifier yourself. Repairs must be performed by the manufacturer or a qualified professional.
• Regular checks: Regularly check the cord, plug, and water tank for signs of wear. If a problem occurs, stop using the unit immediately and contact customer service.

Humidifier Overview

The humidifier consists of the following parts:

• Cover
• Nozzle
• Water Tank Base
• Water Chamber/Tank
• Main Unit
• Aroma Box
• Power Cord
• Handle
• LED Display
• Control Panel
• Water Level Window
• Base
• Connector
• Silicone Tube
• Pump
• Float
• Water Inlet
• Air Outlet
• Ultrasonic Disk
• Cleaning Cloth
• Aroma Pad
• Remote Control
• User Manual

Technical Specifications

Display & Controls

The LED display and control panel allow you to manage the humidifier's functions:

• Display Indicators: Relative Humidity (RH%), Low Water Level, Timer, Sleep Mode, Night Light.
• Control Buttons: Timer, Humidity, Max-Min, Power, Light, Sleep.

Power Button

Press the button to turn the humidifier on or off. If the water tank is empty, the 'water drop' icon will flash 5 times, and the humidifier will automatically shut off.

Note: If the humidifier has been stored for a long time, the sensor may briefly display 'Low Water'. Restart the humidifier 2-3 times to reset the sensor.

Timer Button

Press the button to set the desired operating time (1-12 hours). The timer icon will illuminate. To cancel or reset, press the button repeatedly until '--' is displayed and the icon turns off. The timer is off by default when the unit is powered on.

Max-Min Button

The humidifier starts with the maximum mist output. Press the button to cycle through mist levels: Low (1) → Medium (2) → High (3). The display will update automatically.

Note: If water accumulates around the unit, the air may be too humid. Reduce the mist level.

Light Button

Press to activate/deactivate the night light. This function is off by default when the unit is powered on.

Sleep Button

Press to activate or deactivate sleep mode. When activated, the display dims, and the 'moon' icon illuminates. This function is off by default when the unit is powered on.

Humidity Button

Press to set the desired humidity level (adjustable from 45% to 95%). The corresponding 'humidity' icon will illuminate. To cancel, press repeatedly until '--' is displayed and the icon turns off. This function is off by default when the unit is powered on.

Comfortable Range: 40%-60% relative humidity.

Note: After setting a target humidity, the display shows the current ambient humidity. The humidifier automatically stops misting when the target humidity is reached and resumes when it drops below the set level.

Remote Control

The remote control allows you to operate the humidifier from a distance:

• POWER: Turns the unit on/off.
• TIME: Sets the mist emission duration (1-12 hours).
• LIGHT: Controls the night light.
• MAX-MIN: Adjusts the mist output level.
• HUMIDITY: Sets the desired humidity level (45%-95%).
• SLEEP: Activates/deactivates sleep mode.

Important: For safety during transport, the remote control does not include batteries. Please install 2 x AAA 1.5V batteries before use.

Battery Safety Precautions

• Install batteries according to polarity (+ and -) markings. Incorrect installation can cause malfunction or battery leakage.
• Do not mix new and used batteries, or batteries of different types (e.g., alkaline, carbon-zinc). Mixed use can reduce performance and increase the risk of leakage.
• Replace depleted batteries promptly. Recycle or dispose of used batteries according to local regulations. Do not dispose of them in household waste.
• In case of electrolyte leakage, immediately remove the batteries from the remote control and keep them away from the device. If leakage contacts skin or eyes, rinse thoroughly with clean water and consult a doctor if necessary.

Usage

First-time Use

1. Remove all packaging and follow the steps below.
2. Remove the remote control and user manual from the water tank.
3. Remove the protective packaging from the water pump.
4. Place the main unit onto the water tank. (The water pump does not need to be fixed to the bottom of the tank.)
5. Position the unit on a flat surface at least 30 cm from walls. Use a waterproof mat underneath to prevent overflow.

Refilling the Water Tank

There are two methods for adding water:

• Top Refill: Do not add water through the mist nozzle.
• Bottom Refill: Do not fill beyond the MAX line.

Notes:

• Use purified or distilled water to minimize white dust buildup.
• Place a waterproof mat under the humidifier in case of overflow.
• Refill only with room temperature water. Never use hot water, boiling water, or other liquids.
• Avoid pouring water through the mist outlet to prevent damage to internal components and malfunction.
• Never add essential oils directly into the water tank to avoid damaging components.

White Dust (Mineral Residue)

What is white dust? White dust (mineral residue) is a powdery buildup that may appear near your humidifier. It comes from minerals (calcium, magnesium) in the water, common in hard water areas. The harder the water, the more visible these deposits.

Origin of the phenomenon: The humidifier does not create these residues; it simply releases minerals naturally present in the water. Using distilled water significantly reduces or eliminates these deposits. This process is natural and does not indicate a malfunction.

Solution: Demineralization Cartridge

• Recommended replacement: Every 30-40 refills.
• More frequently if you have very hard water.
• Prefer distilled water if deposits persist.
• Purchase cartridges at: lacidoll.com

Need help? If the problem persists, contact our customer service.

Adding Essential Oils

1. Locate & Remove: Remove the aroma diffuser tray from the back of the humidifier.
2. Insert Pad: Place an aroma pad into the tray.
3. Add Oil: Pour 2-5 drops of essential oil directly onto the pad.
4. Reinstall: Securely place the tray back into position.
5. Activate: Turn on the humidifier to diffuse the fragrance.

Important Notes:

• Use only the provided pad. Never pour oils directly into the tray, tank, or other components.
• Without a pad? Use a sponge of similar size or a folded paper towel as a substitute.
• Fragrance Intensity: This humidifier is not a dedicated diffuser; the fragrance will be subtle.

Cleaning and Maintenance

Preparation

• Always unplug the unit before cleaning.
• Work on a waterproof surface.

To Do

• Clean surfaces with a cleaning cloth.
• Regularly clear the mist nozzle with a soft cloth.
• Change water frequently to prevent bacteria.
• For storage: empty and dry completely.

To Avoid

• Never immerse the main unit.
• Avoid contact between water and the air inlet.
• Do not use detergents, solvents, or chemical products.

Mold Prevention

Mold spores are naturally present in water and air. They multiply rapidly if water stagnates for more than 48 hours.

• Use distilled/demineralized water.
• Completely dry the tank between uses.
• Weekly cleaning with white vinegar.

1. Regular Cleaning

1. Remove the main unit from the water tank and empty any residual water.
2. Clean the cover, water tank base, and water tank with a cleaning cloth or brush.
3. Gently clean the inside of the chamber with a soft brush, preventing water from entering the air outlet.
4. Clean the water pump with a soft nylon brush and use a long brush for the silicone tube.

Note: Ensure all parts are completely dry before reassembly or storage.

2. Descaling

Allow 20-30 minutes.

1. Pour white vinegar into the chamber and tank.
2. Soak the pump and silicone tube in white vinegar.
3. Let the solution sit for 20-30 minutes.
4. Scrub away deposits with a soft cloth or brush.
5. Rinse thoroughly with clean water.

Important Notes:

• Do not let water enter the air outlet.
• Avoid scrubbing the ultrasonic disk too hard.
• Vinegar may leave an odor; ventilate and dry thoroughly before reuse.
• Alternative: Citric acid (follow product instructions).

3. Cleaning the Aroma Diffuser

1. Remove the aroma diffuser tray from the back of the humidifier.
2. Rinse the tray and pad with water, then dry them before reassembly.

Note: If the aroma pad remains stiff after cleaning, replace it. If missing, use a similar-sized sponge or folded absorbent paper.

4. Pump Maintenance & Replacement

If the water pump is not functioning, first try reinstalling it.

• Disconnect: Turn the nut counter-clockwise. Firmly pull the cable near the connector.
• Reconnect: Align and insert the connector. Tighten the nut clockwise.

Damaged pump? Purchase a replacement at: lacidoll.com. Persistent problem? Contact customer service.

5. Seasonal Storage

• Clean the unit as indicated above.
• Completely dry all parts.
• Store in a cool, dry place.

Troubleshooting

No Power / Unit Does Not Turn On

• Check Power: Ensure the humidifier is plugged into a working outlet.
• Recent Cleaning: Water infiltration may prevent startup. Allow to air dry for 24 hours.
• Persistent Problem? Contact customer support.

Low Mist Output

• Water Level: Ensure the water tank is sufficiently filled.
• Mist Setting: Increase the level if set too low.
• Auto Mode: Mist stops when target humidity is reached. Increase the level or target humidity.
• Disc Cleaning: Follow the 'Descaling' steps (Page 17).
• Persistent Problem? Contact customer support.

Mist Escaping from the Tank

• Tank Installation: Ensure the tank is correctly positioned.
• Adjust Mist: Reduce the level to prevent excess mist.

No Mist with Flashing Red Light

• Water Level: Verify the water tank is sufficiently filled.
• Sensor Reset: After prolonged storage/transport, the 'Low Water' message may display incorrectly. Restart 2-3 times to recalibrate.
• Persistent Problem?
• Check Pump: If water is not circulating, follow the 'Descaling' and 'Pump Maintenance & Replacement' procedures (Pages 17-18).
• Float: Clean the float with a cotton swab if it is stuck.
• Ultrasonic Disk: Clean according to 'Descaling' (Page 17) if obstructed. Pour water into the chamber while powered on to check for mist.
• For more details: Visit our website or scan the QR code: https://lacidoll.com/pages/user-manual
• Always Defective? Contact customer service for pump or main unit replacement options.

Insufficient Humidification

• Adjust Mist: Increase the mist output.
• Room Size: If the room is too large, the unit may be ineffective. Consider a more powerful model.
• Ambient Humidity: If the air is very dry, humidification will take longer.

Inaccurate Humidity Reading

• Normal Margin: A 5-10% difference between the display and actual humidity is normal.
• Check Sensor: Clean the sensor of any dust or moisture.
• Placement: Avoid corners and walls. Ensure good air circulation.
• Significant Error? If the deviation is too large, contact support.

Water Leaks

• Inspect Tank: Check for cracks. Never fill beyond the MAX line.
• Stability: Place on a perfectly level surface.

Water Around the Unit

• Humidity Settings: Reduce the level if it is too high. Use the provided tube or reduce mist output. For small spaces, use a waterproof mat.
• Placement: Flat and stable surface. Maintain 30 cm from walls/furniture for good air circulation.
• Verification: Ensure correct tank assembly. Always respect the MAX level.

Mineral Deposits / Unpleasant Odors

• Regular Cleaning: Frequently clean the tank and main unit.
• White Vinegar: Soak affected parts in distilled white vinegar for 20-30 minutes, then rinse.
• Check Aroma Pad: If using essential oils, clean/replace the diffuser pad regularly. Refer to 'Cleaning the Aroma Diffuser' (Page 17) for details.

Mist or White Dust

• Water Quality: Use distilled water instead of tap water with high mineral content.
• Maintenance: Regularly clean the tank and base to remove deposits. Refer to 'White Dust' (Page 13) for details.

Furnace Problems

• White Dust: Risk to Filters Minerals in tap water can turn into white dust and clog furnace air filters.
• Prevention: Use only distilled water. Replace the filter monthly. Clean the exterior weekly.

Abnormal Noises

A slight noise during refilling is normal. For excessive noises, contact technical support.

Warranty Policy

Warranty Coverage

Lacidoll warrants to the original purchaser that this product will be free from defects in materials and workmanship under normal use for a period of one year from the date of purchase. During this period, Lacidoll will repair or replace the product at its discretion.

Warranty Exclusions

The warranty does not cover:

• Unauthorized repairs: Any intervention not approved by the manufacturer voids the warranty.
• Misuse: Damage caused by improper use or incorrect maintenance.
• Commercial use: Products used for professional purposes or rental.
• Normal wear and tear: Consumable parts (bulbs) or normal deterioration.
• External factors: Damage related to natural disasters or power surges.
• Unauthorized sellers: Products purchased outside the authorized network.

Making a Claim

If your product develops a defect during the warranty period:

• Contact Support: Provide the model, proof of purchase, and photos/videos of the issue.
• Evaluation: We will determine eligibility for repair or replacement.

Product Registration

• To simplify warranty service, register your product immediately on our official website: lacidoll.com.
• This simplifies warranty procedures.

Customer Service

For claims or questions:

• Email: support@lacidoll.com
• Hours: Monday-Friday, 9 AM to 5 PM (HE)

Important Notes

• Warranty Cancellation: Unauthorized repairs, chemical products/oils, or improper cleaning may void the warranty.
• Safety Alert: Discontinue use and contact us in case of abnormal noises/odors or malfunction.
• Your Rights: This warranty provides specific legal protections. Additional rights may apply according to provincial consumer laws.