posted on 2024-03-21, 19:54authored byHelen Ngo, Johannes Spaeth, Stefan Schumann
From top to bottom: Surgical mask Dochem, FFP2 respirator 3M, FFP2 respirator Te Yin, FFP2 respirator atemious, FFP3 respirator uvex. Left: View from the front, right: View from the rear. Due to geometrical similarities only one type of facepiece is shown for each manufacturer.