Feature: 1. Suitable for office environment, business negotiation, car driving, KTV environment, star hotels, internet cafes chess room, sleeping environment, refrigerator closet, etc, with space is less than 25 square meters. 2. Internal battery or external USB cable power supply, both available, and can use your mobile phone\u0027s power adapter to charge. 3. Remove 99% PM2.5 particles, odors, tobacco smoke, fume, food smell, beverage smell, pet smell. 4. Eliminate 98% dust, pollen, allergy, mold. 5. One of the main design concept of ashtray shape is to minimize hurt of second-hand smoke to your family and friends, and it is an ideal home air cleaning product. 6. Remove 98% formaldehyde, benzene and other TVOC, kill the virus and germs. 7. Remove 99% PM2.5 particles, odors, tobacco smoke, fume, food smell, beverage smell, pet smell.Eliminate 98% dust, pollen, allergy, mold.Remove 98% formaldehyde, benzene and other TVOC, kill the virus and germs. 8. Special function: timing shutdown function (built-in timer 1 hour /3 hours /8 hours), operation gear modes: Hi/Mid/Low, power display function. 9. Suitable for office environment, business negotiation, car driving, KTV environment, star hotels, internet cafes chess room, sleeping environment, refrigerator closet, etc. One of the main design concept of ashtray shape is to minimize hurt of second-hand smoke to your family and friends, and it is an ideal home air cleaning product. 10. 5 layers multiple purification: negative ion+initial effect network+HEPA filter+silver ion+negative ion, and experience natural environment with PM2.5 filter technology. Specification: The air purifier ashtray can effectively filter and purify secondhand smoke, formaldehyde, odor, pollen, PM2.5, and haze. Refuse second-hand smoke injury, care for family fitness. Features: Suitable for office environment, business negotiation, car driving, KTV environment, star hotels, internet cafes chess room, sleeping environment, refrigerator closet, etc, with space is less than 25 square meters. One of the main design concept of ashtray shape is to minimize hurt of second-hand smoke to your family and friends, and it is an ideal home air cleaning product. Special function: timing shutdown function (built-in timer 1 hour /3 hours /8 hours), operation gear modes: Hi/Mid/Low, power display function. 5 layers multiple purification: negative ion+initial effect network+HEPA filter+silver ion+negative ion, and experience natural environment with PM2.5 filter technology. Remove 99% PM2.5 particles, odors, tobacco smoke, fume, food smell, beverage smell, pet smell. Eliminate 98% dust, pollen, allergy, mold. Remove 98% formaldehyde, benzene and other TVOC, kill the virus and germs. Internal battery or external USB cable power supply, both available, and can use your mobile phone's power adapter to charge. Specifications: Material: ceramic+ABS Color: white, black (optional) Rated voltage input: 5V 2A Power: 3W-5W Purification efficency: 99.8% Filter normal working time: 300 hours Battery: 4 * lithium battery, lithium battery, 3.7V, 8000mAh (included) Maximum air flow: max 100m³/h Working temperature: -15~60℃ Negative ion: 15000000/centimeter³ Noise parameters: minimum 25dB maximum 33dB Filter material: early effect net+silver ions+HEPA composite filter Recommended area: less than 25 square meters of space Item size: 150 * 150 * 100mm / 5.9 * 5.9 * 3.9in Item weight: 1092g / 2.4lb Package size: 225 * 175 * 135mm / 8.9 * 6.9 * 5.3in Package weight: 1309g / 2.9lb Note: If you smoke a pack of cigarettes one day, you can use the filter for 6 months. If you smoke a lot, replace the filter in 3-4 months. Package list: 1 * Air Purifier 2 * HEPA Filter 1 * USB Cable 1 * English User Manual Package List: 1 * Air Purifier 2 * HEPA Filter 1 * USB Cable 1 * English User Manual