Ontario Premier Doug Ford, while urging people to use masks, has said a provincial order would be hard to enforce and that local officials have the power to mandate masks as they see fit.
The City said the bylaw will expire at 12:01 a.m. after the first council meeting following the summer break, which is now scheduled for September 30 and October 1, unless it is extended by council.
Children under the age of two also do not have to wear a mask.
Mayors in surrounding cities had already asked Ontario Premier Robert Ford to issue a mask order, but he had rejected the bid, saying it "wasn't necessary", CBC News reported Monday, though local health officials have the legal authority to make such determinations on the ground.
In her report considered by city council on Tuesday, de Villa said that requiring masks in indoor settings is "essential" to preventing the spread of COVID-19 but she cited studies suggesting that compliance will need to be as high as 80 per cent in order for it to work.
She said masks will help indoor spaces - most of which had been closed during the earlier stages of the pandemic - stay safe.
Toronto will be making it mandatory to wear face masks while inside enclosed public spaces starting next week.
He said that could mean that the "no shirts, no shoes, no business" policy invoked by some business could soon be expanded to include masks as well.
"Wearing fabric masks or face coverings keep you from unknowingly spreading this COVID-19 virus and keeps the people around you from spreading it to you".
The mayor admitted there would not be "aggressive enforcement" when it comes to the mask policy, but rather his government will focus on education. "We are going to rely on people by and large to get educated and to do the right thing".
"I wear my cloth mask to protect you and you wear one to protect me", she said at Tuesday's press conference. "To be candid about it, we don't have the resources to go around and look in every store, look at every person".
Region of Peel officials, including Brampton Mayor Patrick Brown and Mississauga Mayor Bonnie Crombie are planning to enact a similar bylaw. "And a province this size, I encourage it and I encourage and compliment the regions that are doing it, be it Toronto and Peel, but Toronto (and) Peel (are) different than Kenora-Rainy River", he said. "So that's the golden rule", said Ford.