4L Quiet USB Desktop Humidifier with LED Light & Dual Mist

Breathe Better at Home or the Office with the 4L USB Desktop Humidifier

Transform your living space or workspace into a comfortable, well-balanced environment with this ultra-quiet 4L desktop humidifier. Featuring dual mist outlets, a soothing LED ambient light, and a generous 4-liter water tank, this humidifier is designed for all-day use in rooms up to 40 square meters — making it ideal for bedrooms, offices, living rooms, and more.

With whisper-quiet operation under 36dB, you'll barely notice it's running — perfect for use while sleeping, working, or relaxing. The USB-powered design means you can plug it into virtually any power source: a laptop, USB adapter, or power bank.

Key Features

• Large 2.6–4L Capacity: Long-lasting moisture for rooms up to 40 square meters without constant refilling.
• Ultra-Quiet Operation: Runs at under 36dB — quieter than a whisper — so it won't disturb your sleep or concentration.
• Dual Mist Outlets: Two fog outlets for wider, more even mist distribution throughout your space.
• LED Ambient Light: Soft, warm glow doubles as a calming night light or mood light. Long-press the switch to activate the warm light.
• Aromatherapy Compatible: Add a few drops of your favorite essential oil to enjoy a relaxing aromatic mist experience.
• USB Powered (5V): Versatile and convenient — plug into any USB port, adapter, or compatible power bank.
• Auto Water-Shortage Protection: Automatically shuts off when water runs low for safe, worry-free operation.
• Two Mist Modes: Press once for intermittent mist; press again for continuous fogging. Customize your comfort level.
• Compact Columnar Design: Sleek, modern look in Glacier White or Retro Green — fits beautifully on any desk or nightstand.
• CE Certified: Meets European safety and quality standards.

Specifications

• Tank Capacity: 2.6–4.0 Liters
• Applicable Area: 31–40 square meters
• Humidification Method: Ultrasonic Mist Discharge
• Noise Level: <36dB
• Rated Power: 9W
• Power Supply: USB (5V)
• Material: Plastic (Injection Molded Shell)
• Fog Outlets: 2
• Colors Available: Glacier White, Retro Green
• Certification: CE
• Made in Mainland China

How to Use

1. Fill the water tank to the desired level (up to 4L).
2. Fully soak the cotton wick/strip inside the unit before first use to ensure optimal mist output.
3. Connect the USB cable to a power source.
4. Long press the switch to turn on the warm LED ambient light.
5. Press once for intermittent mist mode; press again for continuous mist mode.
6. The unit will automatically power off when water runs out.

Pair It With Your Wellness Routine

Looking to complete your home comfort setup? Check out these related products from our store:

• "Better Days Are Coming" Motivational Canvas Wall Art Print — Add uplifting decor to your humidified space.
• "Everything Is Figureoutable" Sage Green Quote Canvas Wall Art — Perfect companion piece for a calming home office.

Learn More About Indoor Air Quality

Maintaining proper indoor humidity levels can support a healthier home environment. For more information, visit the EPA's Indoor Air Quality resource page.

Frequently Asked Questions

Q: How long does the 4L humidifier tank last on a single fill?

A: Runtime depends on your selected mist mode and room conditions. On intermittent mist mode, the 4-liter tank can last many hours, making it suitable for overnight use or a full workday without refilling.

Q: Does this USB desktop humidifier work with essential oils for aromatherapy?

A: Yes! This humidifier is aromatherapy compatible. Simply add a few drops of your preferred essential oil to the water tank to enjoy a fragrant, relaxing mist throughout your space.

Q: Is this humidifier safe to leave running overnight?

A: Absolutely. The built-in water-shortage auto shutoff protection ensures the unit turns itself off safely when the water level runs too low, making it safe for overnight use.

Q: What power source does this humidifier use?

A: This humidifier is powered via USB (5V), so you can plug it into a laptop, USB wall adapter, power strip with USB ports, or a compatible power bank — making it incredibly versatile for home, office, or travel use.

Q: Why isn't mist coming out when I first use it?

A: Before first use, it is important to fully soak the cotton wick/strip inside the unit. Once the wick is saturated, the mist will begin to discharge properly. Allow a few minutes for the wick to absorb water before operating.