Aaron Collins (aka Masknerd) discusses the uses of masks and respirators to protect against airborne pathogens.

Aaron Collins is a mechanical engineer with a background in aerosol science, who has been testing and evaluating masks, and sharing his findings on Youtube and ever growing Google Doc. This work resulted in a variety of media appearances including NY Times, Wall Street Journal, Scientific American, CBS Mornings, Good Morning America, CNN and BBC Radio. Aaron is also a passionate advocate for clean indoor air, having helped form OpenAeros, an open source hardware company focused around meteorology in the clean air space, as well as The OSLUV Project, a 501c3 non-profit tackling mitigation and solutions to equitably bringing clean air to those most impacted by the COVID-19 pandemic.

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