4L USB Humidifier & Essential Oil Diffuser with Night Light

Breathe Better, Live Fresher — The 4L USB Humidifier & Aromatherapy Diffuser

Upgrade your home environment with this elegant 4-Liter Large Capacity USB Humidifier, combining ultra-quiet mist humidification, a built-in ambient night light, and essential oil diffuser functionality all in one stylish columnar unit. Perfect for bedrooms, living rooms, home offices, and nurseries — covering up to 40 square meters.

This product is intended for home comfort and aromatherapy use only. It is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease or health condition.

Why You'll Love It

• Large 2.6–4L Water Tank — Long-lasting moisture output for continuous all-day or overnight use without constant refills.
• Dual Mist Nozzles — Two spray outlets deliver wide, even mist coverage across large rooms up to 40 m².
• Essential Oil Compatible — Add a few drops of your favorite essential oils for a refreshing aromatherapy experience right at home.
• Soothing Ambient Night Light — A warm, soft glow doubles as a calming night light — perfect for winding down in the evening.
• Ultra-Quiet Operation — Runs at under 36 dB, so it won't disrupt sleep, work, or conversation.
• USB-Powered Convenience — Plug into any USB port, laptop, power bank, or wall adapter — no proprietary power brick needed.
• Flexible Mist Modes — Press once for intermittent mist, press again for continuous fogging; long-press to activate the warm ambient light.
• Auto Shut-Off Protection — Built-in water shortage detection automatically powers down the unit when the tank is empty for safe, worry-free use.
• CE Certified — Meets European safety standards for electrical equipment.

Specifications

How to Use

1. Fill the water tank with clean water (up to 4L).
2. Important: Before first use, fully soak the internal cotton wick strips to allow proper mist generation.
3. Plug the USB cable into any 5V USB power source.
4. Long-press the switch to turn on the ambient warm light.
5. Press once for intermittent mist; press again for continuous mist output.
6. Optionally, add a few drops of your preferred essential oil for aromatherapy.

Pair It With Your Wellness Routine

Enhance your space further with these popular accessories from our store:

• "Everything Is Figureoutable" Sage Green Quote Canvas Wall Art — Complete your serene home ambiance.
• "Better Days Are Coming" Motivational Canvas Wall Art Print — Uplift your space with positive energy.

Learn More About Indoor Air Quality

Maintaining optimal indoor humidity levels can contribute to a more comfortable living environment. Learn more from the U.S. Environmental Protection Agency's Indoor Air Quality resource.

Frequently Asked Questions

Q: How large of a room can this USB humidifier cover?

A: This 4L large capacity humidifier is designed to effectively humidify spaces of 31–40 square meters, making it suitable for most bedrooms, living rooms, and home offices.

Q: Can I use essential oils in this humidifier diffuser?

A: Yes! This unit is essential oil compatible. Simply add a few drops of your preferred essential oil to the water tank for a gentle aromatherapy diffuser experience alongside the humidification function.

Q: Is there an automatic shut-off if the water runs out?

A: Absolutely. The humidifier features built-in water shortage auto-shut-off protection. When the tank is empty, the device automatically powers down to prevent overheating or damage.

Q: What power source does this humidifier require?

A: It is USB-powered (5V), so you can connect it to any standard USB wall adapter, laptop USB port, or power bank — no dedicated power supply needed.

Q: How loud is this humidifier during operation?

A: This humidifier operates at under 36 dB — quieter than a whisper — making it ideal for use during sleep, work, or study without disturbance.