Features: 1. entire cabinet level, no hinges, the inner wall of the arc angle, no dust, easy to clean; 2. Dual door interlock to prevent outside air pollution clean room; Body Material: cold rolled plate spray, stainless steel Universities filter: 99.99%@0.3um Winds: ≧ 23m / s or 0.3-0.5m / s option: radio, buzzer tips, UV germicidal lamp can be customized according to customer requirements