1. In-line negative air purifier, effectively purify indoor air 2. Release 200 negative ions, 360 all-round purification, remove odor, PM2.5, second-hand smoke, formaldehyde, , etc. 3. Two modes, negative intermittent mode and continuous mode, scientific to purify the air 4. Suitable for bedrooms, dining rooms, living rooms, bathrooms, offices, etc., to air quality anytime, anywhere 5. Especially suitable for children, the elderly, pregnant women and those who are allergic to pollen and odor Specification: Product Name: In-Line Air Purifier Model: KY600A Negative concentration: 200 /cm Rated voltage: 90V-250V Rated frequency: 50/60Hz Rated power: 1W Control : in-line Effective range: 30 (no wall blocking) Noise: 20 (dB) of action: in addition to formaldehyde, deodorization, sterilization PM2.5 Product size: 108 x 45.5 x 39mm Plug Type: US Plug,it applies to Canada, , Mexico, Thailand, Taiwan, the , the Philippines and so on. Colour:White Material:ABS Size:108 x 45.5 x 39mm Package Contents: 1 * In-line air purifier (US plug) 1 * and English manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.