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Levoit Dual 100 - User Manual

Levoit Dual 100
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Ultrasonic Top-Fill Cool Mist
2-in-1 Humidifier & Diuser
Model: Dual 100
QUICK START GUIDE
1. Place the humidifier on a hard, flat,
water-resistant surface.
Note: Do not place on towels,
carpets, or other surfaces
with fibers. This will cause the
humidifier to overheat.
Note:
We recommend using
purified water.
Never pour water in the
base chamber directly.
2. Take the water tank o of the base
and remove all tape.
3. Fill tank with room temperature water
and place on base.
4. Plug in the humidifier and press
to turn it on.
5. Press repeatedly to cycle
through mist levels and to turn the
humidifier o.
6. Press to start Intelligent Sleep
Mode. A humidity sensor will
automatically adjust the mist level.
After 5 seconds, all display lights will
turn o.
Tank
Base
Remove Tape

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Questions and Answers

  • T
    Tiffany SanfordSep 2, 2025
    How to fix Levoit Humidifier when no mist comes out?
    • L
      Linda ReynoldsSep 2, 2025
      First, unplug the Levoit Humidifier and plug it back in, then press the power button to turn it on. Also, ensure that you add at least 2 cups / 475 mL of filtered water to the water tank.
  • M
    Monica GregoryAug 31, 2025
    What to do if my Levoit Dual 100 produces an unusual smell?
    • A
      April RobinsonAug 31, 2025
      If the Levoit Humidifier is new, remove the top cover and place the water tank in a cool, dry place for 12 hours. If the water is dirty or has been sitting in the tank for a long period of time, clean the humidifier and refill it with clean water. If you diffused essential oils, deep clean the humidifier with white vinegar and allow it to dry.
  • A
    Amy SmithAug 29, 2025
    Why does my Levoit Dual 100 Humidifier have an unusual smell?
    • R
      rmasonAug 30, 2025
      If your Levoit Humidifier is producing an unusual smell: * If it's new, remove the top cover and place the water tank in a cool, dry place for 12 hours. * If the water is dirty or has been sitting in the tank for a long time, clean the humidifier and refill with clean water. * If you diffused essential oils, clean the humidifier with white vinegar and allow it to dry.
  • M
    Melissa ChristianAug 28, 2025
    Why is there little or no mist coming from my Levoit Humidifier?
    • S
      Shannon WilliamsAug 28, 2025
      If your Levoit Humidifier is producing little to no mist, here's what you can do: * Try using a higher mist setting. * Ensure the mist tube is correctly installed. * Make sure the water level in the base isn't too high. * Clean the transducer with a cleaning brush and white vinegar, ensure all parts are properly installed, and refill with clean water if the water is dirty or there's mineral buildup. * Check that the mist outlet and air inlet aren't blocked.
  • F
    Frank AdamsAug 26, 2025
    How to fix Levoit Humidifier if it will not turn on?
    • M
      Miss Ashley JonesAug 27, 2025
      If your Levoit Humidifier is not turning on or the buttons are not working, try these steps: First, unplug the humidifier and then plug it back in. After that, press the power button to turn the humidifier on. Also, ensure that the water tank has at least 475 mL / 2 cups of distilled or purified water.
  • C
    Christopher HodgeAug 25, 2025
    What to do if my Levoit Dual 100 is leaking water?
    • T
      Tracie DeanAug 25, 2025
      Ensure the tank is properly placed on the base by aligning the indicator marks. Also, check that the sealing ring inside the water tank is securely in place; clean it if necessary to ensure it can open and close normally. Finally, make sure the float is correctly installed and securely in place.
  • B
    Brandon WilliamsAug 22, 2025
    What to do if my Levoit Dual 100 Humidifier is leaking?
    • T
      Tanya CarrilloAug 22, 2025
      If your Levoit Humidifier is leaking water, try the following: * Ensure the tank is properly placed on the base, aligning the indicator marks. * Check that the sealing ring inside the water tank is securely in place; clean it if necessary to ensure it can open and close normally. * Verify that the mist tube and float are correctly installed and securely in place. * If humidity is too high, water may condense; turn down the mist level or turn off the humidifier. * Clean the water outlet valve assembly with vinegar if it's blocked by mineral buildup.

Overview

The Levoit Dual 100 is an Ultrasonic Top-Fill Cool Mist 2-in-1 Humidifier & Diffuser designed to improve air quality and provide aromatherapy benefits in household settings.

Function Description:

The primary function of the Levoit Dual 100 is to humidify the air by releasing a cool mist. It operates as an ultrasonic humidifier, which uses high-frequency vibrations to produce a fine mist that is then dispersed into the room. This helps to alleviate issues caused by dry air, such as dry skin, irritated sinuses, and static electricity. As a 2-in-1 device, it also functions as an essential oil diffuser. Users can add essential oils to the base chamber, allowing the humidifier to disperse aromatic mist for aromatherapy purposes. The device features a top-fill design for easy water refilling and includes an Intelligent Sleep Mode that automatically adjusts mist levels to maintain a comfortable 60% relative humidity (RH) while turning off display lights for an undisturbed sleep environment. Mist levels can be manually adjusted through low, medium, and high settings.

Important Technical Specifications:

  • Model: Dual 100
  • Power Supply: AC 100–120V, 60Hz
  • Rated Power: 24W
  • Water Tank Capacity: 0.48 gallons / 1.8 liters
  • Run Time: 8–20 hours (Note: Actual run time may vary depending on environmental temperature and humidity.)
  • Noise Level: < 28dB, ensuring quiet operation suitable for bedrooms and offices.
  • Effective Range: 107–260 ft² / 10–24 m², making it suitable for small to medium-sized rooms.
  • Dimensions: 7 x 7 x 10.6 inches / 17.6 x 17.6 x 27.1 cm

Usage Features:

  • Quick Start: To begin, place the humidifier on a hard, flat, water-resistant surface, at least 6 inches (15 cm) away from walls, furniture, bedding, and appliances. It is crucial not to place it on fibrous surfaces like towels or carpets, as this can block the air inlet and cause overheating. The water tank is easily removed from the base, and any tape should be removed before use.
  • Filling: The humidifier features a convenient top-fill design. To fill, remove the top cover from the water tank and pour room temperature water directly into the tank. It is recommended to use purified water to prevent white dust buildup caused by high mineral content in tap water. Never pour water directly into the base chamber or through the mist tube.
  • Essential Oil Diffusion: For aromatherapy, 10–15 drops of pure essential oil can be added directly into the base chamber. This allows the humidifier to disperse the scent along with the mist.
  • Operation: After filling and placing the tank back on the base (ensuring indicator marks are aligned), plug in the humidifier. Press the Control Button once to turn it on at the low mist level. Subsequent presses of the Control Button cycle through medium, high, and off settings.
  • Intelligent Sleep Mode: Press the Sleep Mode Button to activate this feature. The humidifier will automatically adjust the mist level to maintain a 60% relative humidity, and all display lights will turn off after 5 seconds to ensure a dark sleeping environment. Pressing the Sleep Mode Button again or the Control Button will cancel this mode, returning the humidifier to its previous mist level.
  • Safety Precautions: Always ensure the humidifier is stable to prevent spills. Do not block the mist outlet while in use, as this can damage the device. If the water tank is empty, the humidifier will not turn on, and the control button light will blink, indicating the need for a refill. Avoid moving or shaking the humidifier when it contains water to prevent excessive water release into the base chamber. Before moving, turn off, unplug, and remove the water tank. If the humidifier is not producing mist correctly, check the max water line in the base chamber and pour out any excess water if it's above the line.

Maintenance Features:

  • Regular Cleaning: Weekly cleaning is recommended to prevent bacteria growth and mineral buildup. All maintenance should be performed on a water-resistant surface.
  • Daily Water Change: Change the water in the tank daily to prevent bacteria growth.
  • Top Cover and Tank Cleaning: Remove and wash the top cover. Remove the water tank from the base and pour out all water from both the tank and base. Rinse the tank and base chamber with room temperature water. It is crucial not to let water enter the air outlet or near the control panel.
  • Scale Buildup Removal: To remove scale buildup in the water tank or base chamber, soak the affected areas with distilled white vinegar and then wipe with a cloth or cotton swab.
  • Essential Oil Residue Cleaning: If essential oils were used, fill the water tank and base chamber with distilled white vinegar and allow them to soak to clean any residue.
  • Mist Tube Cleaning: The mist tube can be detached for cleaning. Flip the tank over, pull the mist tube away from the center, and lift it out. After cleaning, ensure the mist tube is correctly reinstalled by aligning it with the mist outlet and pressing it down until the tab snaps into place.
  • Drying: After cleaning, rinse all parts and pour out any remaining water. Dry all parts thoroughly with a cloth, ensuring they are completely dry before storage.
  • Storage: If the humidifier will not be used for a week or longer, ensure all water is removed, and the device is completely dry before storing it in a cool, dry location.
  • Transducer Cleaning: The transducer, responsible for creating the mist, should be cleaned regularly to prevent mineral buildup, which can affect performance. Use a cleaning brush (not provided) and white vinegar for this.
  • Water Outlet Valve Assembly: If the water outlet is blocked by mineral buildup, clean the water outlet valve assembly with vinegar.

Levoit Dual 100 Specifications

General IconGeneral
BrandLevoit
ModelDual 100
CategoryHumidifier
LanguageEnglish

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