*Who are Canadian Guardians? Canadian Guardians is a Canadian manufacturer of superior quality masks. We provide our customers with reliable products manufactured by well-trained staff and exceptionally high standard processes. *What are the products? Our disposable ASTM Level 3 medical masks are approved by Health Canada and are manufactured in our dust free ISO Class 8 certified clean room in this building. They are uniquely designed to provide comfort, styling and protection for you and your loved ones. It has 3 layer filtering with Bacterial Filtration Efficiency (BFE) ¬98% Together with other health care measures, the value we add will add protection against the current health crisis. *What is the quality? Quality is a fundamental belief of Canadian Guardians. Our customers receive high quality solutions and services with integrity, professionalism, expertise and passion.