A respirator mask is an essential piece of safety equipment that we insist on all course participants having one with them when they attend a workshop course.
It will protect you from dust particles when using certain tools and materials.
There are various mask manufacturers and you should search for the best product and price according to your need and budget. For most uses a half mask like the 3M Half Face Mask Respirator 6500 or 7500 Series, or similar, will provide sufficient protection. It is used in combination with the 6051 vapour filter and, if you are doing dusty work, an additional 5925 or 5935 particulate filter.
You can find details of the 3M range of respirators here.
You can watch a video here on how to safely fit your respirator.