Oz Manufacturing is a 100% Australian owned and operated company with the importance of producing quality 3 ply layer masks here in Australia from start to finish. Oz Manufacturing has best practice ISO Certification with ISO 9001 Quality, ISO 14001 Environment and ISO 45001 Safety. This is to ensure that our customers have confidence in our business. Buy with confidence online or call directly and speak to our friendly staff based here in Sydney to place an order. We deliver to your door directly. Always follow the correct procedure to ensure your mask fits correctly and, dispose your masks in a bin to help our environment.masks in a bin to help our environment.