Airborne contaminants pose a constant risk to health and process safety. Molecular contaminants, harmful gases, and vapors in particular can have a negative impact on human health and product quality.

Using the example of NO2 and the associated formation of nitrosamines in pharmaceutical processes, we will show how adsorption, the physical principle used in molecular filtration, can effectively separate harmful gases. Various separation mechanisms in molecular filtration media will be presented and an insight into normative regulations will be provided. The focus is on EN 16798-3 and EN ISO 10121 in particular. While the former specifies requirements for ventilation and air conditioning systems in indoor air technology, depending on the supply air quality, the latter offers the possibility of examining and comparing adsorption media and molecular filters in an application-oriented manner. Test setups according to ISO 10121-1 and ISO 10121-2 will be shown and typical measurement results discussed.
MCC is an important component for clean and safe indoor and process air, especially in urban environments. Molecular filtration media from Camfil ensure that all legal and normative requirements are met.