Mask wearing causes respiratory changes in respiration efforts, air resistance and sensation of dyspnea, but these do not appear to be clinically significant
A number of studies have assessed the use of N95 masks under low-moderate work conditions, concluding that mask wearing is well tolerated by healthy individuals
Limited evidence in special populations indicates that those with very severe conditions may be unable to tolerate mask wearing
Badea, A; Groot, G; Young, C; Miller, L. What are the risks of long-term and/or continuous mask use? 2020 Oct 20; Document no.: EOC102001 RR. In: COVID-19 Rapid Evidence Reviews [Internet]. SK: SK COVID Evidence Support Team, c2020. 21 p. (CEST rapid review report)