1. Easy use: with an advanced touch sensor, you could use your finger to touch the button, then it's would work for you.2. Silence portable air cleaner: A volume as low as 30 dB makes it hard to hear, ensuring it doesn't disturb your quiet and comfortable time.3. Remove the Bad Odors for Your Car, No need change filter, Keep cleaning the air inside your car. Ideal for people who suffer from Allergies, Nasal, Stuffiness, Cough, Sneezing, Asthma. Removes all kinds of odor, effectively filters pollen, PM2.5 particles, adsorbs above 99.9% of the formaldehyde, benzene and other harmful gases.4.Safety and all age product: Are you considering the potential safety hazards of the product? Or worry about the old people accidentally getting electric shock and children's accidents? Please rest assured that our products are for all ages. For the safety of our customers, we control the current within the safe range.