DUPLA is a negative pressure full face mask with threaded connector
to EN148-1.

DUPLA integrates a panoramic visor and can be used both
with screw filters to EN 148-1 and special cartridges of the Spasciani
2000 series.

Fits Spasciani RC12 Screw cartridges

The face blank is made of TPE

Comes complete with adaptor to accept RC11 series cartridges