Features: Super strong purification performance: PM2.5 and PM10 filtration efficiency are both 99.9%, effectively removing fine particles and ensuring healthy breathing. High-efficiency power system: 3500±10% RPM high-speed motor, combined with 69.72mm H2O strong wind pressure, quickly circulates air and penetrates multiple layers of filters, stably responding to complex air duct requirements. Five-layer composite filter system: Layered precision purification; Primary interception: blended long-fiber cotton captures large particles; Electrostatic adsorption: modified filter cotton intercepts more than 95% of fine particles; Ultra-clean and long-lasting: 3-in-1 composite filter cotton increases filtration efficiency to 99.9% and activates the performance of the front layer; Double-effect deodorization: fast-acting activated carbon physically absorbs odors + long-acting activated carbon chemically degrades harmful gases, taking into account both immediate and long-lasting purification. Professional scene adaptation: multi-layer collaborative design takes into account smoke, dust and odor, meeting the purification needs of laser engraving or cutting in multiple scenes such as home and office. Specifications: Product size: as shown Notes: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Please allow 1-3cm measuring deviation due to manual measurement. Thank you for your understanding! Packing List: Purifier*1