"It is a breathable face covering, not restricting the oxygen intake, not providing filtration of external air and not restricting the removal of carbon dioxide and bacteria present in the exhaled air. These features are of particular importance for outdoor intensive activities. The essential purpose of such face covering is the opposite to the conventional meaning implied in the commonly used term "mask". This product fits under facial masks, facial coverings, sport masks, outdoor masks, facial recognition, breathing masks, thermal protection masks, and partial sun protection masks"