ATU-125 is a high‑performance air treatment system that creates clean‑room‑level air around a user’s bed, home, nursing space, apartment, office or vehicle. It removes viruses, bacteria, fine dust and other pollutants using a HEPA filter and controls airflow with positive and negative pressure to provide a safe breathing environment. The unit is compact, lightweight with wheels, features a pressure‑monitoring gauge for filter‑change intervals of 1‑3 years, and is certified by accredited testing agencies.