General description If you are looking for a high-quality portable air purifier for your bedroom that is economical and safe to use, this air purifier is your best choice. It features an effective 3-stage filtration system that removes at least 99.97% of dust, pollen, smoke, odors, pet hair, and filters particles as small as 0.3 microns. With a powerful 360° cleaning performance, you can enjoy the cleanest and freshest air. This ultra-quiet model has been upgraded to ensure you can sleep soundly. Technical specifications Filtration Performance: 99.97% Filtration Size: Particles as small as 0.3 microns Recommended Room Size: 20m³ Noise Level: Low-noise version Filter Life: Up to 1,500 hours Usage Designed for use in bedrooms, home offices, offices, and small rooms. Easy operation with a one-touch button to switch between two fan speed levels. Intelligent filter replacement reminder with an indicator light that flashes when the filter needs to be replaced.