The particle concentration must be kept very low in clean or ultra-clean rooms. This is the only way that special manufacturing processes such as semiconductor production or the manufacture of active pharmaceutical ingredients can take place. 

The strictest requirements for maximum purity, including sterility, apply here. Whether in the supply air ceilings of cleanrooms or in separate laminar flow work booths, B&S HEPA filters meet these requirements in every respect. Micro glass fiber filters up to the highest filter class U17 according to EN 1822 are manufactured in a wide range of frame systems.

In addition to the separation of particles, there is often also a need to separate gaseous contaminants from the air in order to protect products, processes, machines or even people. This is where so-called AMC (Airborne Molecular Contamination) filters are used, which can separate chemical substances from the groups acids (SO2, H2S, HCl, Nox, etc), bases (amines, NH3), VOCs (Volatile Organic Compounds = hydrocarbons) and dopants (P, B) from the air.