Unlike conventional masks, the Kuhn Copper Mask and Kuhn Copper Insert are reusable. The outdate is two years.
Easy to Clean
The Kuhn all Copper Mask and Kuhn all Copper Insert can be immediately disinfected by rinsing in rubbing alcohol (isopropyl alcohol). They can be sterilized by autoclaving.
Copper mesh is highly breathable, allowing air flow. Typical surgical masks are made from layers of woven fabric, reducing air flow, making breathing difficult and causing glasses to fog.