Cleanroom Air Filtration Planning: Fine Filter, HEPA Filter, FFU and AHU Choices Explained
Maintaining clean air in a hospital is a constant task, because every filter in the chain repeatedly does its job. A well-chosen HEPA filter and a sound plan keep your cleanroom working exactly the way you need. Work Out the Air Path First Walk through your room and trace the air from intake to exhaust. Every stop along that path needs its own filter, and the order matters. Fine Filter Comes Before HEPA A fine filter takes the bulk of the dust off incoming air before it reaches the final stage. Leave it out, and the HEPA stage clogs early, so you end up paying for replacements far more often. AHU or FFU: Let the Room Decide A central AHU can feed a whole operation theatre or production block from one plant room. FFUs work better when you are adding a clean zone to a room that already exists. Match Filtration to How the Room Is Used A setup that suits a surgical suite can be wrong for a lab bench. Look closely at what actually happens in each space before you finalize anything. Opera...