@grrttweaver @BrianLenzkes Even there, they make a distinction between loosely woven cloth masks and finely woven ones. It isn't a blanket statement about cloth masks:
"Loosely woven cloth products provide the least protection, layered finely woven products offer more protection"
@grrttwaver@BrianLenzkes即使在那里，他们也区分了松散编织的布面具和精细编织的面具。这不是关于布面具的笼统声明：
“松散编织的布制品提供最少的保护，分层精细编织的制品提供更多的保护”