During the last month, Bregina Kersten and Yvonne Hartman performed tests with medical mouth masks that were developed in the Netherlands. Bregina and Yvonne were asked by the National test team to set up a physical performance tests and a fit test. For the performance test participants performed 10 minutes walking, 5 minute crawling, 20 squats and 5 minutes walking, as is specified in European Guidelines. After each of these test participants were questioned about the comfort, security of fastenings, field of vision, ease of breathing and heat production while wearing the mask. The fit test involved participants wearing a hood in which a sweet substance was sprayed. While wearing a mouth mask, the participants performed several small tasks, such as talking, nodding and heavy breathing. During all these tasks, the participant should not taste the substance in order to have a mask with a good fit. All measurements were performed by COVID-19 department personnel, including our colleague Daan Viering (see photo). Now, all data has been analyzed and feedback has been provided to the companies involved, so they could optimize the medical mouth masks.
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