Representative images of 5 subjects are shown. Representative images of 5 subjects are shown. Panel A shows erythema on the nose immediately after the mask for overnight NIV was removed in the morning. Non-blanching erythema consistent with a stage I pressure ulcer persisted throughout the day. The subject in panel B has stage I pressure ulcers on the right cheek and forehead. Panel C shows a stage II ulcer on the forehead that developed over 1 night of wear. Panels D and E show stage II and stage III pressure ulcers, respectively, on the nasal bridge. Marty O Visscher et al. Respir Care 2015;60:1536-1547 (c) 2012 by Daedalus Enterprises, Inc.