Two working modes: Detection and timing modes work at the same time: one is that after the pet leaves the area, the deodorizer starts the deodorization mode; the other is that the cat air purifier runs automatically every 15 minutes, ensuring 24 hours of fresh air.Purify the air: Eliminate odors in a small area, do not cover them. The smell may not disappear completely on the first day of use, but you will feel a noticeable difference after 2-3 days.Charge with USB: Low power consumption, long battery life, charged via USB cable (included), can be used for 15 days after full charge.Suitable for pets: The smart pet odor filter is equipped with a high-sensitivity motion sensor that can detect animal movements within a large angle range. 360 intelligent recognition and automatic switching of odor purifiers to prevent cats from being afraid.Easy to use: The pet smart odor purifier can intelligently identify, purify the air and operate with low noise. Suitable for cat litter boxes, cat litter, dog litter, around pet toilets, etc.