Details High Purify Efficiency: The desktop air purifier offers a healthy air environment, captures 99% of airborne particles such as smoke, dust, pollen, mold, pet dander, odors as small as 0.1 microns and air pollution of PM 2.5 Smart Air Purifier: The timer function is 2-8 hours, so whether you are outside or sleeping, you can set the smart air purifier timer to adjust time with confidence. Auto mode will automatically save energy if you have no idea how to set the grade level according to the air quality. Excellent H30 Filter: The power adapter is put in the middle of the filter H30 inside the air purifier, suggest to change the filter every 3 months, it compatible with a variety of air purifiers, such as TPAP002 Aromatherapy Diffuser: Add a few drops of essential oil (not included) to the sponge under the air outlet of the purifier, the purifier will diffuse with the air movement.