USB Ultrasonic Humidifier & Aromatherapy Diffuser – 2.5L

Create Your Perfect Atmosphere at Home

Transform any room into a serene, comfortable retreat with the PDQ Portable Ultrasonic Humidifier and Aromatherapy Diffuser. With a generous 1.1–2.5L water tank capacity, this whisper-quiet device delivers a continuous, fine cool mist that helps balance indoor humidity levels — keeping your home feeling fresh and comfortable all day and night. Whether you're working from home, winding down before bed, or simply enjoying a quiet evening, this versatile device makes every moment more enjoyable.

Powered conveniently via USB at just 5V / 2W, it's energy-efficient and compatible with laptops, power banks, wall adapters, and more — making it truly portable for home, office, or travel.

Key Features

• Large Capacity Tank: 1.1–2.5L reservoir for extended, uninterrupted misting sessions
• Ultrasonic Mist Technology: Produces a gentle, fine mist through ultrasonic vibration — no heat required
• Aromatherapy Diffuser Function: Add a few drops of your favorite essential oil to enhance the atmosphere with natural fragrance
• Ultra-Quiet Operation: Runs at under 36dB — quieter than a whisper — so it won't disturb sleep, work, or relaxation
• USB Powered: 5V / 2W low-energy design powers from any USB source for ultimate portability
• Multiple Certifications: Certified to CB, CE, CSA, EMC, EMF, GS, LFGB, RoHS, SASO, UL, and UR standards for your peace of mind
• No High-Concern Chemicals: Built with your household's well-being in mind — zero high-concern chemical materials

Specifications

• Brand: PDQ
• Capacity: 1.1–2.5L
• Humidification Method: Ultrasonic Mist Discharge
• Power: 2W
• Voltage: 5V (USB)
• Noise Level: <36dB
• Certifications: CB, CE, CSA, EMC, EMF, GS, LFGB, RoHS, SASO, UL, UR
• Country of Origin: Made in Mainland China

Perfect For

• Bedrooms, living rooms, home offices, and nurseries
• Desk use — plugs directly into your laptop or PC via USB
• Aromatherapy sessions with your favorite essential oils
• Travel — compact and lightweight for hotel rooms or on the go

Pair this diffuser humidifier with some of your favorite essential oils to elevate the sensory experience. Looking for more aromatherapy inspiration? Explore our calming wall art prints to complete your relaxation space, or check out our range of motivational wall décor to brighten your home office.

For tips on maintaining healthy indoor humidity levels, visit the EPA's Indoor Air Quality Guide for expert guidance.

Learn more: Humidifier

Frequently Asked Questions

Q: How large is the water tank on this USB ultrasonic humidifier?

A: The humidifier features a large 1.1–2.5L water tank, allowing for extended misting sessions without frequent refills — ideal for overnight use in a bedroom or all-day use in a home office.

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

A: Yes! This device doubles as an aromatherapy diffuser. Simply add a few drops of your preferred essential oil to the water tank to fill your room with a natural, calming fragrance as the cool mist is dispersed.

Q: How quiet is this humidifier during operation?

A: The ultrasonic technology keeps noise levels below 36dB — about as quiet as a soft whisper — making it ideal for use while sleeping, studying, or relaxing without any disruptive sound.

Q: What power source does this USB humidifier require?

A: It runs on standard 5V USB power at just 2W, so you can plug it into a laptop, desktop USB port, power bank, or USB wall adapter — giving you total flexibility wherever you use it.