... deodorization strainer ,remove formaldehyde ,ammonia gas and acetic acid in air which harmful gas and foreign odor.3. nanometer activity ... harmful gas, double sterilizing, release activity ion and humidification.all-in-one handle design, very convenient for moving, check automatic ... ion, humidification and air clean, design for your need in the life. Low power ≤2.5w, more energy-saving and more ...