Portable USB Desktop Air Cooler Fan – 500ml Water Tank

Stay Cool Anywhere with This Compact USB Desktop Air Cooler

Beat the heat at your desk, home office, or bedroom with this Portable Desktop Air Cooler. Combining a whisper-quiet fan, dual ultrasonic misting technology, and a generous 500ml water tank, this personal air cooler delivers a refreshing, fine-mist breeze exactly where you need it — without the bulk or cost of a full-size air conditioner.

Key Features

• 4 Adjustable Fan Speeds & 4 Timer Settings: Customize your comfort with four fan speed levels and built-in timer options (2H / 4H / 6H / 8H) — perfect for workdays, naps, or overnight use.
• Dual Ultrasonic Misting Technology: Delivers highly efficient evaporative cooling using advanced ultrasonic mist generation for a noticeably cooler personal space in minutes.
• Ultra-Fine 4.5μm Mist: The micro-fine mist evaporates almost instantly, keeping you comfortably cool without wetting your skin, clothing, or desk surface — even during extended sessions.
• Large 500ml Sealed Water Tank with Ice Compatibility: The sealed tank reduces the need for constant refills, and you can add ice cubes directly to the tank for an extra boost of cooling.
• Built-In Condensation Collection Tank: A smart bottom-mounted reservoir collects excess moisture during operation, with a rear drainage hole for easy manual release when needed.
• Cool Mode & Natural Wind Mode: Switch between refreshing misted airflow or gentle natural fan breeze to suit your preference.
• Whisper-Quiet Operation: Runs as low as 50dB — quiet enough for office work, video calls, or light sleeping.
• USB Powered (5V): Plugs into any USB port, power bank, laptop, or USB wall adapter for maximum portability and convenience.
• Waterproof & Durable 12V DC Motor: Engineered for safe, reliable long-term use with anti-block protection for peace of mind.

Specifications

• Power Source: USB
• Fan Speeds: 4 levels
• Timer Settings: 2H / 4H / 6H / 8H
• Water Tank Capacity: 500ml
• Mist Particle Size: 4.5μm
• Noise Level: ≥50dB
• Motor: 12V DC, waterproof & anti-block
• Country of Origin: Made in China

Perfect For

Home offices, dorm rooms, bedrooms, study desks, cubicles, or any small personal space where you want targeted, portable cooling without central air conditioning.

Explore More Comfort & Home Essentials

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For more information on energy-efficient cooling and smart energy use at home, visit the U.S. Department of Energy – Energy Saver: Cooling.

Frequently Asked Questions

Q: Does this portable desktop air cooler work without ice?

A: Yes! The USB desktop air cooler works effectively using just water in the 500ml tank. Adding ice cubes to the sealed water tank will enhance the cooling output and deliver even cooler mist, but it is completely optional.

Q: Will the fine mist from this cooling fan get my desk or keyboard wet?

A: No. The advanced 4.5μm ultra-fine mist evaporates almost instantly upon contact with the air. You can use this desktop cooling fan continuously without worrying about moisture damaging your workspace, keyboard, or documents.

Q: How do I power this USB cooling fan?

A: This air cooler is powered via USB, making it incredibly versatile. Simply connect it to a laptop USB port, a USB wall adapter, or a portable power bank for cooling on the go — no dedicated power outlet required.

Q: How often do I need to refill the 500ml water tank?

A: The 500ml sealed water tank is designed to minimize frequent refilling. Usage time between refills will vary based on fan speed and misting intensity settings, but the large capacity means you can typically run the unit for several hours before needing a top-up.