This refreshing patch from Cokare helps you enjoy fresh scents to clear the nasal canals during the use of any type of protective mask. We use 100% natural ingredients. Ingredients: Eucalyptus oil, peppermint oil, lavender oil. Apply the patch on a textile surface. The patch will stay fresh for up to 6 hours of continuous use. You can add a patch for extra strength. Do not apply the patch directly to the skin. Dispose of after use, do not reuse.