Perfect for breath control play:
This converter replaces the pepperpot exhalation cap of the army gas mask with an M40 gas mask thread. This allows you to collect the exhaled air and use it (partially) to inhale again.
The converter is made of high-quality ABS plastic and has a gasket for the hose connection.
Please note that solo breathing sessions are not without danger. Therefore, never play alone or leave your partner unattended.