Pick up only 【Advanced 3-Stage Filtration System】:Air filter with the Pre-Filter, True HEPA Filter, and High-Efficiency Activated Carbon Filter capture pollen, pet hair, dander, smoke, odor and large dust particles, in addition to removing 99. 97% of airborne contaminants as small as 0. 3 microns. 【Smart Filter Change Reminder】：Air purifiers with Replacement Indicator remind you when you need to replace your filter. It is recommended to replace your filter every 6-8 months depending on the use and air quality. 【Sleep Mode and Night Light】:Air purifiers for bedroom with Sleep Mode reduces noise levels to a near-silent 28dB, night light can be choosed between two brightness settings to ensuring the hepa air purifier won’t get in the way of a good night’s rest. 【Aromatherapy】：Add 2-3 drops of your favorite essential oils (Not Included) to the aroma pad under the cover. After that, the air purifier large room will effectively distributes clean air and fresh fragrances throughout the room. 【Effective 360° Air Intake】: Air purifiers for home covering an area of up to 161-215 sq. ft/15-20m², perfect for quickly replacing the air in your bedroom, study, living room, or kitchen with cleaner, healthier air.