OZONE OUTPUT- This Ozone Generators Ionizer has max ozone output per hour of 12000 mg, meeting the 2000 square feet of space. And it has a built-in the latest upgraded ceramic ozone board, which is sturdy and durable and has a long use life, easy to clean. EASY TO USE- Adopt a horizontal output design. The timer knob can be set for up to 180 minutes, and the "HOLD" setting can also be used continuously use. We suggest that to set a timer before you leave the room, ensure that no people (or petsplants) is in the room when it is working. It can start from 10 minutes and increase the setup time if necessary, depending on the size of the space. HIGH QUALITY - Adopt an exquisite all-metal shell, sturdy and durable, weighs only 5.9 pounds, and is equipped with a metal handle, which is convenient for you to carry with you. This is a great ozone machine for home, industrial, or commercial use. WIDE USES - This O3 machine Ionizers Deodorizer is very suitab