How to enter units and do repairs safely

Only do emergency or urgent repairs
Ask or tell tenants to plan to be out of their apartment for two or three hours, until the repair is completed. Suggest they can stay in their, take a walk, or stay with relatives or friends that have been practicing social distancing.
Before tenants leave, instruct them to open all their windows.
Let the unit air out for at least an hour before you enter.
Wear clothes that cover you entirely, no skin showing.
Wear gloves that cover up your wrists as well.
Wear facemasks throughout.
Wear goggles to protect your eyes, both from coronavirus and flying particles.
Wear a washable hat, covering your head as much as possible.
When you enter, do not touch anything in the unit except what is absolutely necessary, doorknobs and whatever is being repaired.
Call the tenants and tell them they can come back in. Suggest they wait 30 minutes or longer.
Consider everything you are wearing has coronavirus on it, so WASH EVERYTHING with laundry detergent and (if possible) hot water
Shoes: Wash or wipe down the outside with a solution of detergent and water and paper towels. Rinse with water, if you wish, and let dry. Throw out the paper towels safely.
Take a full, long shower, washing hair and entire body two or three vigorous times.
If you need a helper or a hired tradesperson (electrician, plumber, etc.), have them take similar precautions.