Mississippi State University,
Keywords: face mask leakage, face barrier coverings
Summary:Fabric fiber contents, structures, weights, and layers were extensively tested using standards set for N95 respirators. Based on the results, the MSU team selected the combination with the highest filtration efficiency balanced with differential pressure. Specifically, the use of a moisture wicking inner layer provides additional moisture respiration impaction and contributes to increased filtration efficiency. The addition or1hc elastic soft foam trim prevents impacted moisture droplets from escaping and causing low filtration efficiency readings. The moldable elastic soft foam across the top of the barrier face covering also limits fogging of eyewear. The sleek design also limits side leakage by creating a continuous seal at the top of the jawbone. Due to the issues with mask discomfort and flt, many in the general public resist wearing facial coverings, despite government regulations. The MSU Face Barrier Coverings utilizes moisture wicking inner lining to decrease discomfort from perspiration. Natural perspiration wicking can lead to a cooling effect and provide additional comfort perceptions for the wearer. We examined over 10 different mask fits and analyzed gapping and fit issues, based on the CDC/NIOSH head forms. From this data we designed the MSU Face Barrier Covering to maximize direct skin contact in areas with bone structures to provide additional support and limit overall discomfort. A fit and gapping analysis indicates the proposed design is under 12% leakage compared to 80-90% for available masks.