Newly available, Polypropylene Non-Woven Filter, sized to fit inside O Canada Masks' filter pocket to achieve a 3 layer mask as recommended by Public Health Canada. Enjoy over 60 Masks Designs, find one you'll Love! Still Designed + Made In Canada. Masks are in Stock + Orders Fulfilled within 2 Business Days. Be sure to check out our Mask Bracket below. They make mask wearing more comfortable.