Dr. Theresa Tam, the top doctor at the Public Health Agency of Canada, said that Canadians can use non-medical masks in addition to physical distancing measures to limit the transmission of COVID-19. “Wearing a non-medical mask is an additional measure that you can take to protect others around you.” Please note that a non-medical mask does not necessarily protect the wearer. See the article here.
The US Centre for Disease Control has a great website with instructions on how to make your own cloth mask.
Of course, it’s important to remember not to touch your eyes, nose and mouth when removing your face covering and to wash your hands after removing. You should also wash your cloth mask regularly.