To solve the problem that a correspondent method for a best remedy is nothing but an unctuous mask or a heavy protective suit forcing behavioral restriction like a space suit in dangerous modern society with multiplicity of dangers such as a breath in daily air pollution, a breath and mucosal adhesion of pollen dispersal in the air and a room, a breath in an office generating usual hazard gas, and a smog influx generated in China.

People breathe polluted air in the current life environment, however, the sun visor works for separating the people from the polluted air with fresh air in the following steps: a solar electric motor capable of operating with weak electric current rotates a fan by module operation of photovoltaics or a charge/discharge battery, and it is put on the sun visor and the like without effects on trivial movements, and an air curtain of fresh air separates skin mucosa from air pollution, and the people protect themselves from allergy caused by antibody decoration in vivo and conquer the damage of the polluted air and pollen.