face mask of the series P-6 GM with one hole in the bottom back region for connecting to a single water drainage system The connection can be made with a water drainage nozzle P-6 W, a water drainage hose P-6 SL, a snap-on coupling P-6 K including a short hose P-6 SK as well as a water collector bottle P-6 F, which can be mounted with a support P-6 H to a workstation