A medical treatment or testing mask includes a first profile having a first fastening mechanism, and a second profile, that is separate from the first profile, having a second fastening mechanism that is fastenable to the first fastening mechanism. The mask further includes a first sheet of thermoplastic material attached to the first profile and to the second profile, wherein, when the second fastening mechanism is fastened to the first fastening mechanism, the first profile and the second profile create a single frame structure.