A protection mask includes a frame having two slits in two ends thereof and a tongue is located in each slit. Two temples extend backward from the two ends of the frame. A connection rod is located at the middle portion of the frame. A connector is connected to the connection rod and has a C-clip which has a notch. A protrusion extends from the connector and has a groove defined in the outside thereof. A nose pad is connected to the connection rod and has a snapping portion which is engaged with the notch of the connector. The snapping portion has a snapping slot. A protection member has an insertion slot with which the protrusion of the connector is engaged. Two connection slots are respectively defined in two ends of the protection member. The two tongues are engaged with the two connection slots.
