(Upgrade Litter Deodorizer) This deodorizer uses advanced deodorization technology to eliminate over 99% of litter box odors. Once turned on, the built-in sensor continuously monitors litter box activity until the battery is depleted. ( Cat Friendly and Fragrance-free) Designed to be safe for pets and people, the litter box air deodorizer features a high-sensitivity biosensing system that automatically turns off when a cat approaches and turns back on when the cat leaves. Provides smart care for pets. (Compact and Portable) The cat litter box deodorizer includes a USB charging port and is easy to carry. Offers 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 capture dust and fine particles, improving air quality. Non-toxic and safe; effectively removes unpleasant odors and refreshes the air by breaking down odor-causing molecules such as ammonia, hydrogen, and sulfide compounds. Specifications: Deodorizer Details: Weight: 182g Dimensions: 3.7 x 3.7 x 9.3 cm Deodorization Rate: 99% Dust Reduction Rate: 99.9% Operation 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) Notes: Odor reduction may not be immediate on the first day of use; best results are typically noticed after 23 days. For optimal performance, place the deodorizer inside or near the litter box. During weekly litter box cleaning, remove the deodorizer and recharge as needed.