Polar Pak, a Canadian Novolex brand, announced it will be manufacturing more than two million medical face shields in Canada for use by Health Canada and other potential customers to fight the COVID-19 pandemic.    These shields will be used to fulfill the need for more than four million face shields over the next couple of months.   Since March, Novolex has been rapidly converting certified food grade packaging lines to make personal protective equipment (PPE) at more than seven locatio...