To attain the maximum air circulation in a mask chamber by improving the air circulation in a mask, to be adapted to an N95 performance standard and the other high performance standard in gas permeability.

This respiratory mask has a mask body, and a head band for attaching the respiratory mask on the face of a wearer. The mask body is composed of an inside mask having two or more filter layers, and an outside mask having two or more filter layers. One or more spacers are built in between filter layers of the inside mask, and a space is formed between the different filter layers of the inside mask. One or more spacers are built in between filter layers of the outside mask, and a space is formed between the different filter layers of the outside mask. When the wearer exhausts air, the spacers and the filter layers bring about the pump action effect together, and blow off excessive carbon dioxide discharged by the wearer to the periphery, and take in more air from the periphery for the wearer.