Adjustable airflow with three speed settings to match your needs. Use gentle airflow for quiet operation or higher purification when air quality is poor, such as smoke or dust in a room, classroom, or other small space. Compact and portable design. This mini desktop air purifier fits on a desk or nightstand and is ideal for small spaces like dorm rooms, bedrooms, and offices, providing clean air without crowding the area. USB charging capability. The unit features a TypeC interface, allowing it to be powered from devices such as laptops, power banks, or USB adapters. This makes it versatile for bedroom use or other smallspace applications. Suitable for small spaces. Designed to fit compact areas, it helps keep your space fresh without taking up much room, complemented by an accessible air filter. Use scenarios Dorm room or small bedroom: place the purifier on a desk or shelf and power it via a laptop or USB charger to improve air quality in a limited space. Small office or study area: keep it on your desk to support cleaner air during work or study sessions; adjust the speed to balance purification with noise level. Classroom or shared space: use as a desk purifier in tight spaces to maintain cleaner air without occupying substantial room in a crowded setting.