1、2 WORKING MODES: Air mode and water mode to meet your different needs. Air mode: This mode is suitable for large spaces and purifies all odors. Water mode: For oral clean, deodorizing clothes, dermatological treatment, eliminating impurities such as heavy metal ions and many organic substances in water. 2、FAST ELIMINATES: Quickly eliminate all kinds of odors in the space. Promotes health and comfort, improving quality of life. 3、EASY TO USE: Just turn the timing knob of the air O3 machine to set the O3 generation time and leave the room, these odors are neutralized, leaving behind a clean and fresh smelling environment. The O3 generator will automatically stop working when the time is up. Ventilate for at least 30 minutes after O3 generation ends. 4、HOW THE WATER MODE WORK: Tuck in the bubble stone to the hose end, and another end of hose connect to the machine interface. Then put the bubble stone to the water. Set time and turn on the machine, the machine will work (If you want to use it in small space, you don't need to tuck in the bubble stone to the hose, just put the hose to where you want to use it). 5、WIDE RANGE USES: O3 generators are highly suitable for various spaces, whether it's your home, office, pet area, basement, or even your car, O3 generators can eliminate the smell of smoke, pets, cars, cooking and other odors in these spaces. Specifications: O3 Production: 40g/h Material: Aluminum Alloy + Plastic Power: 80-150W Timing: 0-120min Cooling Mode: Air cooling Item Size: 217 * 170 * 130mm / 8.54 * 6.69 * 5.12in Item Weight: 2011g / 4.43lb 1 * O3 Generator 1 * Power Cord 1 * Hose 1 * Bubble Stone 1 * Warning Sign 1 * User Manual (English)