It’s estimated there are about half a million people who are deaf or hard of hearing in Washington and Idaho. Short of everyone wearing face masks with clear windows, or using clear face shields, it can be difficult for them to communicate, even with each other.

https://www.inlander.com/spokane/mask-mandates-help-reduce-covid-but-can-make-it-harder-for-deaf-people-to-communicate/Content?oid=20205747