-the-efficacy-of-homemade-masks-would-they-protect-in-an-influenza-pandemic/0921A05A69A9419C862FA2F35F819D55">Davies, A., Thompson, K., Giri, K., Kafatos, G., Walker, J., &amp; Bennett, A</a> See Table 1: a 100% cotton T-shirt has around 2/3 the filtration efficiency as a surgical mask, for the two bacterial aerosols they tested.&nbsp;<a href="#fnref35" rev="footnote">&#8617;</a></p>
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	<li id="fn36">
	<p><strong>&quot;We need to save supplies for hospitals.&quot;</strong> <em>Absolutely agreed.</em> 