Reduce99.9% of , Dust, Pollen, Smoke, Odors, Pet Dander, Formaldehyde, Mold spores and TVOC. Negative Ion Generators: -free.Allows to sterilizate and continously, efficiently remove and isolate dust and common household from the air. WHISPER-QUIET OPERATION: The sound is just the most beautiful even hushed noise. It's almost non-existent on low and perfect white noise maker on high. Plug in the Type-C cable, Contact the power button to turn on, the RGB light will gradually change after turning on, the germicidal lamp will also turn on, the air sensor needs to be warmed up for 3 minutes, and the current air quality will be automatically detected after 3 minutes. The green light means the air quality is good, and the yellow light is on. It means the air quality is medium, the red light means the air quality is poor, Contact it again to shut down When the power cord is turned on after the shutdown, if the air quality is poor, the machine will automatically turn on without waiting for the 3-minute warm-up process; during the purification process, the internal fan is used to keep the air circulating after the machine is turned on, and the air passes through the filter cotton. Harmful particles are adsorbed on the filter cotton and inside, thereby obtaining fresh air colour: black Material: ABS Size: 75x75x155MM Package Contents: 1 x purifier 1 x USB power cord Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.