Portable Air Cooler With Ultrasonic Atomization

This portable air cooler measures approximately 18 x 15 x 22 cm (allowing for ±1–3 cm tolerance) and weighs a lightweight, handheld amount suitable for easy transport. It features a top-mounted transparent water tank with visible water level indicator, enabling quick refills without spillage. Constructed from durable plastic, it operates using USB power — compatible with power banks, laptops, adapters, and other 5V DC sources — making it ideal for indoor and outdoor use including bedrooms, kitchens, offices, camping, and travel. The unit combines dual ultrasonic atomization with adjustable wind speeds and multiple operating modes to deliver a cool, refreshing breeze. When water is depleted, it automatically switches to natural wind mode for uninterrupted airflow and safe overnight use. Its upgraded mesh filter enhances air filtration, while its optimized internal structure reduces operational noise to 34 dB — quieter than typical desktop fans. Designed for comfort and convenience, it includes a built-in handle for portability and space-saving storage. No refrigerant or compressor is used; cooling relies on evaporative principles enhanced by fine mist dispersion.