Clean Room Concepts (5) Clean Room Concepts Page 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 With Air Crafters Clean Room Products CLEAN ROOM OPERATING PARAMETERS 1.) ROOM CLEANLINESS...: Expressed as a classification per Fed.Std. 209E (e.g., Class 10, Class 100, Class 1,000, Class 10,000, Class 100,000), room cleanliness levels are the basis of any clean room design. It... is recommended. The process should be defined as completely as possible before any clean room is laid out. This sounds elementary, but a poorly defined process will result...