(Upgrade Litter Deodorizer) Deodorizer utilizes advanced deodorization technology to effectively eliminate over 99% of odors from cat litter. Once turned on, the cat litter deodorizer continuously monitors litter box usage via sensor technology until the battery is depleted. (100% Cat Friendly and Fragrance-Free) Designed to be safe for both pets and people, the litter box air deodorizer features a built-in high-sensitivity biosensing system. It automatically turns off when a cat approaches and turns back on when the cat leaves, providing smart, considerate care for pets. (Small and Portable) Equipped with USB charging, this compact deodorizer is easy to carry and provides up to 7 days of operation on a single charge. No consumables, no filters, zero waste, and fully reusable. Features: Releases high-activity negative ions that help capture dust and fine particles, improving overall air quality. Non-toxic and safe for household use; helps neutralize unpleasant odors and refresh indoor air by breaking down odor-causing molecules such as ammonia, hydrogen, and sulfides. Specifications: Deodorizer Details: Weight: 182g Size: 3.7 x 3.7 x 9.3 cm Odor Removal Rate: 99% Dust Reduction Rate: 99.9% Operating Mode: 24 hours a day, 7 days a week Battery Life: Up to 7 days on a full charge Charging Method: USB powered (5V input) Please Note: * Odor reduction may not be immediate on the first day of use; optimal results typically appear within 23 days. * For best performance, place the deodorizer inside or near the litter box. * During weekly litter box cleaning, remove the deodorizer and recharge as needed.