Altor Safety's N95 cup disposable surgical respirator is a medical-grade mask designed to provide a high level of respiratory protection, with a 95% filtration efficiency against non-oil-based particles, while also featuring a cup shape that conforms to the face and provides a ...Altor Safety's N95 cup disposable surgical respirator is a medical-grade mask designed to provide a high level of respiratory protection, with a 95% filtration efficiency against non-oil-based particles, while also featuring a cup shape that conforms to the face and provides a secure seal, as well as adjustable nose pads and comfortable headbands for optimal fit and extended wear.