1. In-line negative ion air purifier, effectively purify indoor air 2. Release 200 million negative ions, 360° all-round purification, remove odor, PM2.5, second-hand smoke, formaldehyde, , etc. 3. Two modes, negative ion intermittent mode and continuous mode, scientific ratio to purify the air 4. Suitable for bedrooms, dining rooms, living rooms, bathrooms, offices, etc., to improve 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 ion concentration: 200 million/cm³ Rated voltage: 90V-250V Rated frequency: 50/60Hz Rated power: ≤1W Control method: in-line Effective range: 30㎡ (no wall blocking) Noise: 20 (dB) Scope of action: in addition to formaldehyde, deodorization, PM2.5 Product size: 108 x 45.5 x 39mm Plug Type: EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Colour: White Material: ABS Size: 108 x 45.5 x 39mm Package Contents: 4 * In-line air purifier (EU Plug) 4 * Chinese and English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.