What are the various classes of clean rooms, and what door specifications correspond to each class?

A: Clean room classifications are generally denoted by grades, where higher grades signify greater cleanliness levels. In hospital settings, the prevalent grades include Class 100,000 (equivalent to ISO 8), Class 10,000 (ISO 7), and Class 1,000 (ISO 6). These are well-suited for hospital uses like operating rooms, sterile processing areas, and laboratories. Cleanroom doors are specifically engineered to comply with the standards of their designated class. For instance, a door for clean room in Class 100,000 incorporates smooth surfaces, secure seals, and automatic closing features to block contaminants. Cleanrooms doors for a Class 10,000 clean room require stricter standards, including enhanced airtightness and reduced outgassing to preserve room purity.