let'me H785 2.11 Gallon Ultrasonic Cool Mist Humidifier User Manual

1. Important Safety Instructions

Please read and save these instructions before operating your humidifier. Failure to follow these instructions may result in electric shock, fire, or serious injury.

• Always place the humidifier on a firm, flat, waterproof surface at least 12 inches (30 cm) away from walls and appliances.
• Do not place the humidifier on carpet, near heat sources, or in direct sunlight.
• Ensure the power cord is not damaged and is placed away from high-traffic areas.
• Unplug the humidifier from the power outlet before filling, cleaning, or moving it.
• Do not immerse the humidifier base in water or other liquids.
• Do not add essential oils directly into the water tank. Use the designated aroma box only.
• Keep out of reach of children and pets.
• Use clean, cool tap water. Distilled or demineralized water is recommended to prevent white dust.
• Do not block the mist outlet or air intake vents.

2. Product Overview

The let'me H785 Ultrasonic Cool Mist Humidifier is designed to provide optimal humidity levels in large rooms, bedrooms, and offices. It features a large capacity water tank, intelligent humidity control, and quiet operation.

Figure 2.1: let'me H785 Humidifier with Remote Control

Key Features:

• Large Capacity: 8L (2.11 Gallon) water tank for extended operation.
• Coverage: Suitable for rooms up to 500 sq ft.
• Mist Output: Up to 300ml/h.
• Long Runtime: Operates for up to 48 hours on a single refill.
• Intelligent Humidity Control: Adjustable from 40%-90% with automatic mist adjustment.
• 3 Mist Levels: Low, Medium, High settings.
• Top-Fill Design: Easy and convenient water refilling.
• Timer Function: Set operation for 1-12 hours.
• Sleep Mode: Quiet operation (below 35dB) with display lights off.
• Aroma Box: Integrated tray for essential oils.
• Remote Control: Convenient operation from a distance.
• 360° Rotating Nozzle: Direct mist flow as needed.
• Built-in Ceramic Filter: No replacement filters required.

Figure 2.2: Overview of Humidifier Features

3. Setup

3.1 Unpacking

1. Carefully remove the humidifier from its packaging.
2. Remove all packing materials, including any protective films or tapes.
3. Verify that all components are present: humidifier unit, remote control, and user manual.

3.2 Placement

• Place the humidifier on a flat, stable, and waterproof surface.
• Ensure it is at least 12 inches (30 cm) away from walls, furniture, and electronic devices to prevent moisture damage.
• Avoid placing it directly on the floor if possible, to allow for better mist dispersion.

3.3 Filling the Water Tank

Figure 3.1: Top Water Filling Method

1. Ensure the humidifier is unplugged from the power outlet.
2. Open the top cover of the humidifier.
3. Pour clean, cool water directly into the water tank opening. Do not exceed the 'MAX' fill line indicated on the water level window.
4. Close the top cover securely.

3.4 Power Connection

• Plug the power cord into a standard electrical outlet. The humidifier will enter standby mode.

4. Operation

The humidifier can be operated using the touch control panel on the unit or the included remote control.

4.1 Power On/Off

• Press the Power button (U) on the control panel or remote control to turn the humidifier on or off.

4.2 Adjusting Mist Level

Figure 4.1: Three Spray Volume Modes

• Press the Mist Level button (Mist icon) to cycle through Low, Medium, and High mist output settings.

4.3 Intelligent Humidity Control (Humidistat & Auto Mode)

Figure 4.2: Auto Mode Humidity Adjustment

• Press the Humidity button (Humidity icon) to set your desired humidity level from 40% to 90% in 5% increments. The humidifier will automatically adjust mist output to maintain this level.
• To activate Auto Mode, press the Humidity button until 'AUTO' appears on the display. The humidifier will automatically adjust mist output based on the current room humidity:
  • Below 40% RH: High mist
  • 40%-50% RH: Medium mist
  • 50%-60% RH: Low mist
  • Above 60% RH: Mist output turns off

4.4 Timer Function

Figure 4.3: Timer and Remote Control

• Press the Timer button (Clock icon) to set the operating time from 1 to 12 hours. The humidifier will automatically turn off when the set time expires.

4.5 Sleep Mode

Figure 4.4: Quiet Operation in Sleep Mode

• Press the Sleep Mode button (Moon icon) to activate sleep mode. The display lights will turn off, and the humidifier will operate at a low, quiet mist level (below 35dB) for undisturbed rest.

4.6 Aroma Box (Diffuser Function)

Figure 4.5: Adding Essential Oil to the Aroma Box

• Locate the aroma box on the side of the humidifier.
• Pull out the aroma box tray.
• Add 2-3 drops of your preferred essential oil onto the aroma pad.
• Slide the tray back into the aroma box. The humidifier will diffuse the scent with the mist.

4.7 Remote Control

• The remote control allows you to operate all functions of the humidifier from a distance. Ensure the remote control is pointed towards the humidifier's display panel.
• Insert 2 AAA batteries (not included) into the remote control if needed.

5. Maintenance

Regular cleaning is essential for optimal performance and hygiene.

5.1 Daily Maintenance

• Unplug the humidifier.
• Empty any remaining water from the tank and base.
• Refill the tank with fresh, clean water.

5.2 Weekly Cleaning

1. Unplug the humidifier and empty all water.
2. Remove the top cover and water tank.
3. Clean the Water Tank: Wipe the inside of the tank with a soft cloth. For stubborn mineral deposits, fill the tank with a mixture of 1 cup (240ml) white vinegar and 1 cup (240ml) water. Let it sit for 30 minutes, then rinse thoroughly.
4. Clean the Base and Transducer: Gently wipe the ultrasonic transducer (the small metal disc) and the heating element (if applicable) in the base with a soft brush or cloth. Do not scrub or use abrasive cleaners. If mineral deposits are present, apply a small amount of white vinegar to a cloth and wipe the area, then rinse with clean water.
5. Clean the Aroma Box: Remove the aroma pad and wash the tray with mild soap and water. Rinse and dry thoroughly.
6. Rinse all parts thoroughly with clean water and dry before reassembling.

5.3 Stone Ceramic Filter

• The built-in stone ceramic filter does not require replacement. Periodically rinse it under running water to remove any accumulated debris.

5.4 Storage

• Before storing, clean the humidifier thoroughly as described in Section 5.2.
• Ensure all parts are completely dry.
• Store the humidifier in its original packaging in a cool, dry place.

6. Troubleshooting

7. Specifications

8. Warranty and Support

let'me provides the following support for your humidifier:

• 120 Days Free Exchange: For product defects or issues within 120 days of purchase.
• 1-Year Quality Assurance: Covers manufacturing defects for one year from the date of purchase.
• 7x24h Customer Service: Dedicated customer support available around the clock.
• Lifetime Tech Support: Assistance with technical questions and product usage for the lifetime of the product.

For any questions or concerns regarding your product, please contact let'me customer service through your order detail page. We aim to respond within 12 hours to assist you.