e distance anterior to the forehead measured (40 mm) for an extended foam projection (Figs.  1a  and b).
Figure 1  ENT modified face shield (frontal view), b ENT modified face shied (oblique view), c ENT modified face shield with no droplet penetration, d 3D printed face shield with diffuse penetration, e Generic mask and visor with medial penetration superiorly Testing was in accordance to Australian/New Zealand Standard™ AS/NZS1337.1:2010 (The eye and face protectors for occupati