Evaluation of Different PPE Ensembles in terms of Sensation, Usability, Satisfaction and Preference

The purpose of this study is to assess the subjective responses on uncomfortable sensation, usability, overall satisfactory level and preference while wearing five types of personal protective equipment (PPE) ensembles. Ten subjects exercised on a treadmill, worked on a computer, and moved a mannequin in a simulated environment, replicating a health care worker's routine. Results show that the subjective discomfort perceptions, usability, overall satisfactory level and preference are different for the different ensembles. The perceived thermal, wet and overall uncomfortable sensation on the entire body was significantly correlated with those under the mask. Overall uncomfortable sensations both under the mask and in the entire body significantly influenced the overall satisfactory level of ensembles. This paper discusses how the air-tightness, weight and construction may be responsible for the usability difference between PPE. The fitness of the mask is a significant factor affecting the overall uncomfortable sensation under the mask and overall satisfactory level of the PPE ensemble.