The present invention provides a sports mask for breathing training. The sports mask includes a head assemble containing clips to hold the mask against the head. The sports mask further includes a face band assembly that includes straps that are received by the clips present on the head assembly to hold the face assembly against the face of a user. The face assembly includes a face mask unit comprising an airflow valve. The airflow valve includes an airflow resistance varying module that helps in varying flow of air into the airflow valve. The control of airflow resistance varying module can be either manual or automatic when the mask is connected to a wearable device or a vital parameter collection device.
