School students have a lot of exercise, The population is concentrated. Unsterilized for a long time to produce odor, Student exchanges are frequent, Easy to infect bacteria. Fire print school classroom air purifier, Do not scrub the agent, Just clean the floor and close the window. Open the student locker door, Adjust working hours, Plug in the power, Close the gate. Hydroxyl radicals are produced after a few minutes, Negative ion air. The bacteria in any corner were killed and the smell disappeared completely. Kill bacteria and provide people with negative oxygen ions. Need to buy a school air purifier, Please contact us, we will provide equipment, technology, after-sales service.