Mask Fitters for FFP2/KN95 Masks

Digital Health Technology - 3D Printing

Digital Health Technology - 3D Printing

The recent shipment of FFP2 masks to Belgium have shown that they do not provide adequate protection to the wearer, despite having fully functional filters. Due to their loose fit, they allow leaks that undermine the effectiveness of the mask.

Materialise has been working together with the Belgian government and a number of hospital experts, including UZ Gasthuisberg prevention advisor Herman Devriese, to develop a solution which will allow the unusable KN95 masks to be worn safely.


The Materialise Mask Fitter is a reusable and easily implementable accessory that provides a good face fit without leaks – it goes over the mask and is fixed in place with elastic straps. For instructions on how to choose the right size and wear your FFP2 mask with the Mask Fitter, please watch this video.