In an effort to limit the spread of COVID-19, CDC recommends that adults and children two years and older wear a mask, especially when social distancing is not possible or feasible[1]. Cloth masks and medical masks used in healthcare settings (such as surgical or procedure masks) are important tools in the fight against the spread of COVID-19, however they are not a type of respiratory protection. Due to limited supplies, respiratory protection should be reserved for workers who rely on it to perform their work safely. The masks that we all should wear are primarily intended for source control. What is the
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