Comfort Score questionnaire
tightness, itchiness, fatigue, Sensations
HEAT
The Comfort Score questionnaire with ten items (humidity, heat, breathing resistance, itchiness, tightness, saltiness, feeling unfit, odor, fatigue, and overall discomfort) was used in German translation to quantify the perception of comfort/discomfort of wearing a mask. Sensations had to be rated on a 10-point rating scale with 1 representing ‘‘not at all’’, 5 representing ‘‘mildly’’ and 10 representing ‘‘strongly’’