https://www.cdc.gov/coronavirus/2019-ncov/hcp/ppe-strategy/eye-protection.html
Adhere to recommended manufacturer instructions for cleaning and disinfection.
When manufacturer instructions for cleaning and disinfection are unavailable, such as for single use disposable face shields, consider:
While wearing gloves, carefully wipe the inside, followed by the outside of the face shield or goggles using a clean cloth saturated with neutral detergent solution or cleaner wipe.
Carefully wipe the outside of the face shield or goggles using a wipe or clean cloth saturated with EPA-registered hospital disinfectant solution.
Wipe the outside of face shield or goggles with clean water or alcohol to remove residue.
Fully dry (air dry or use clean absorbent towels).
Remove gloves and perform hand hygiene.
https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/how-to-wash-cloth-face-coverings.html
Washing Machine
You can include your face covering with your regular laundry.
Use regular laundry detergent and the warmest appropriate water setting for the cloth used to make the face covering.
Washing by Hand
Prepare a bleach solution by mixing:
5 tablespoons (1/3rd cup) household bleach per gallon of room temperature water or
4 teaspoons household bleach per quart of room temperature water
Check the label to see if your bleach is intended for disinfection. Some bleach products, such as those designed for safe use on colored clothing, may not be suitable for disinfection. Ensure the bleach product is not past its expiration date. Never mix household bleach with ammonia or any other cleanser.
Soak the face covering in the bleach solution for 5 minutes.
Rinse thoroughly with cool or room temperature water.