(Upgrade Litter Deodorizer) Deodorizer uses advanced deodorization technology to effectively eliminate over 99% of litter box odors. Once turned on, the cat litter deodorizer continuously monitors litter box activity using a built-in sensor that operates as long as the battery has power. (100% Cat Friendly and Fragrance-free) Designed to be safe for pets and people, this litter box air deodorizer features a high-sensitivity biosensing system. It automatically turns off when a cat approaches and turns back on once the cat leaves, providing smart care for your pet. (Small and Portable) Equipped with USB charging, this compact deodorizer is easy to carry and provides up to 7 days of use on a single charge. No consumables, no filters, zero waste, and reusable. Features: - Releases high-activity negative ions that help capture dust and fine particles, improving indoor air quality. - Non-toxic and safe for household use; helps neutralize unpleasant odors and refresh the air by breaking down odor-causing molecules such as ammonia, hydrogen, and sulfur compounds. 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: Continuous operation (24 hours/day, 7 days/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 are typically noticed after 23 days. - For best performance, place the deodorizer inside or near the litter box. - When cleaning the litter box weekly, remove the deodorizer and recharge it as needed.