MASQUE DE PROTECTION BLOQUANT DES POLLUANTS ATMOSPHÉRIQUES

摘要

A protective mask for preventing air pollutants comprises: a filter located at an inhaled air inlet on the outer surface of the protective mask and configured to filter pollutants entrained in inhaled air; a heat exchanger located at an exhaled air outlet on the inner surface of the protective mask and configured to absorb heat from the previously exhaled air to warm up the subsequently inhaled air; and a mask body connected with the filter and the heat exchanger, the mask body along with the filter and the heat exchanger covering at least the mouth and nose of a user. Another protective mask for preventing air pollutants comprises: a filter located on the outer surface of the protective mask and configured to filter pollutants entrained in inhaled air; and a heat exchanger located on the inner surface of the protective mask and configured to absorb heat from the previously exhaled air to warm up the subsequently inhaled air; wherein the filter and the heat exchanger cover at least the mouth and nose of a user. The present utility model reduces or even avoids condensation in the interior or in the filter materials of the mask during the mask is worn by the user, and thereby improves the comfort of use.