The Negative Air Pressure Purifiers are designed specifically for infection control. It prevents the spreading of contaminants and viruses such as the Corona Virus. It can be used almost anywhere, but mostly in Hospitals, medical facilities, and Biological laboratories. The ARDC-2502 Maintains negative pressure in a hospital room that can accommodate 1~6 patients (max. 53ã?¡ based on -2.5Pa and 12ACH) Applications: 1) Protect medical workers of infectious diseases and viruses 2) Prevent airborne cross-contamination risk 3) Reinforce existing contamination treatment facility 4) Create a safer environment free of viruses and infections 5) Can be used as a Negative pressure Machine and Air Purifier Features: 6) UV LED: semipermanent, does not produce ozone 7) Filtration: 4 filters (pre, medium, HEPA, carbon filter) 8) High-performance BLDC motor (semi-permanent): level control from 0-100 9) Additional functions (Fine dust, CO2, VOCs, Temperature, Humidity)