Autors: Sofronova, D. A., Angelova, R. A., Sofronov, Y. P., Ivanova, M.
Title: Measuring the Parameters of the Microenvironment under Protective Face Masks
Keywords: face masks, respirators, CO2 concentration, thermophysiological comfort

Abstract: Face masks and respirators are used to limit the spread of viruses in conditions of a pandemic. However, their use provokes an impediment to the heat 3and mass transfer processes from the face of the wearer to the environment. A microzone is formed between the face and the mask/respirator, which has different air temperature and relative humidity than the environment. The microzone is supposed to have a higher concentration of carbon dioxide (CO2) that could have an adverse effect on human physical and physiological processes. The aim of the paper is to present a measurement of the parameters of the microzone (air temperature, relative humidity and CO2 concentration) under three types of respirators using a specially designed measuring device. Two types of activities are tested: sitting at a desk and slow walking to simulate the wearing of a face mask in the indoor environment (working places, shops, means of transport). The obtained results strongly show the highest levels of CO2.

References

    Issue

    XXXII International Scientific Symposium Metrology and Metrology Assurance (MMA), pp. 1-6, 2022, Bulgaria, DOI 10.1109/MMA55579.2022.9993318

    Вид: публикация в национален форум с межд. уч., публикация в реферирано издание, индексирана в Scopus и Web of Science