-Conforms to VDI 6022 -Inert microbiological components acc. according to ISO 846 - Food contact tested acc. according to EC 1935: 2004-Does not contain BPA, phthalate and formaldehyde. - Chemically resistant to inactivation and purification procedures - 2 times lower initial pressure drop - 5 times stronger carrier than glass fiber - Aerosol tolerant test membrane