Features  1. Modular design, the quantity can be set as required. The closet and shoe cabinet are integrated, or the closet and shoe cabinet can be separated, which can be combined arbitrarily, which is easy to install. 2. Low energy consumption, low noise, firm structure and stable performance. 3. Fixed ring or anti-skid device, number or card partition. 4. Dedicated controller and pressure difference meter indicate the pressure difference on both sides of the high-efficiency filter, reminding to replace the high- eficiency filter in time. 5. Comply with ISO14644-1 and the latest GMP regulations, with high reliability. Optional 1. The material can choose stainless steel or cold plate electrostatic spray, or a combination of the two. 2. American RICHMOND static elimination system. 3. PLC automatic control system. 4. Pre-filter and chemical molecular filter can be added as needed to eliminate odor and toxic gas.