A protection mask includes a frame 1 having two slits 10 in two ends thereof and a tongue 11 is located in each slit 10. Two temples 12 extend backward from the two ends of the frame 1. A connection 2 rod is located at the middle portion of the frame 1. A connector 2 is connected to the connection rod 13 and has a C-clip 20 which has a notch 21. A protrusion 22 extends from the connector 2 and has a groove 23 defined in the outside thereof. A nose pad 3 is connected to the connection rod 13 and has a snapping portion 30 which is engaged with the notch 21 of the connector 2. The snapping portion 30 has a snapping slot 31. A protection member 4 has an insertion slot 40 with which the protrusion 22 of the connector 2 is engaged. Two connection slots 41 are respectively defined in two ends of the protection member 4. The two tongues 11 are engaged with the two connection slots 41.
