Protective half-mask

Protective half mask (1) for respiratory protection, includes an outer half mask (2), a replaceable internal filter and two exhaust valves (4). The outer half mask (2) has the form of a perforated canopy equipped with elements (7) for attaching the half mask (1) to the user's head. The exhaust valves (4) are mounted in the replaceable internal filter (3), while the outer half mask (2) has holes corresponding to the position of the exhaust valves (4), with rings (9) embedded in the holes with which the replaceable internal filter (3) is attached to the outer half mask (2). The bodies (10) of the exhaust valves (4) are press-fit in the rings (9), it is best if each of the rings (9) is mounted on the bottom body offset (10) of the exhaust valve (4). The diameter of the opening in the ring (9) is smaller than the diameter of the opening in the outer half-mask (2).