Even in environments where mask protocols made scientific sense pre-2020, they are never expected to be worn continuously and in the absence of any other protocols for 8 hours straight.
Even in environments where mask protocols made scientific sense pre-2020, they are never expected to be worn continuously and in the absence of any other protocols for 8 hours straight.
Even in environments where mask protocols made scientific sense pre-2020, they are never expected to be worn continuously and in the absence of any other protocols for 8 hours straight.