Our Nursing Coordinator, Tricia Ulch has shared a toolkit for reopening for our parents/guardians. I believe you will find answers to many of your questions.
The Parent/Guardian Toolkit has been updated. The most recent
changes are within the section about masks, especially masks with
exhalation valves or vents. The changes state: The purpose of masks is
to keep respiratory droplets from reaching others to aid with source
control. Masks with one-way valves or vents allow exhaled air to be
expelled out through holes in the material. This can allow exhaled
respiratory droplets to reach others and potentially spread the COVID-19
virus. Therefore, CDC does not recommend using masks if they have an exhalation valve or vent.
These type masks will not be allowed starting Monday, August 31, for staff or students.