Capture 99% of allergens: Car air purifier with real HEPA (High Efficiency Particulate Filter), three-step filtration process that removes up to 99% of harmful gases, smoke, bacteria, odors , dust, pollen, animal hair and other particles from the vehicle.4000mAh Rechargeable Design: This smokeless ashtray is equipped with 4000mAh battery, can be used up to 20 hours with full charge. Avoid replacing the batteries frequently and you can use it not only in rooms, but also in the car or outdoors.High Concentration Negative Ion Release: Built-in high concentration negative ion device which reduces dust, fresh air and increases negative ion content in air.[Pregnant Women and Children Health Design]: Protect the health of your family and children, renounce the damage of second-hand smoke, and provide your family with a healthy environment.Ultra quiet function: press the switch to change the fan speed and turn on / off, one touch turns on the air purifier at low speed, and a second touch for higher speed, a third key to turn off the air purifier. 'air. Quickly purifies second-hand smoke with low noise operation, it is by far the quietest smoke purifier you will come across. Just disassemble it directly in water for cleaning or wipe it with a damp cloth.