Fig. 1From: 3D printed mask extenders as a supplement to isolation masks to relieve posterior auricular discomfort: an innovative 3D printing response to the COVID-19 pandemica. Stereolithography image file of the authors’ modified mask extender design. b. Photograph of 3D printed mask extender from the NIH 3D Print Exchange [4] (top, shorter design) and the authors’ modified and extended design (bottom, longer design). c and d. Photographs of the lengthened mask extender on a head mannequin (c) and healthcare professional (d). Note that the extender holds the mask ear loop off of the posterior auricular surface (yellow box in d)Back to article page