Positive pressure mask

A positive pressure mask comprising a base part that covers areas of a nose part from below a user's eyes to a philtrum and a surrounding cheek part and has a suction valve in response to breathing through the nose part, a cover part that faces the base part is coupled to the base part along an edge portion therebetween, and partitions a space between the base part and the cover part, a supply part that supplies filtered air by connecting a supply pipe to the space between the base part and the cover part, a discharge pipe having one end communicating with a space between a nose of the user and the base part and the other end extending to the outside of the base part and/or the cover part, a discharge valve installed on a duct of the discharge pipe, and a discharge filter that is installed on the duct of the discharge pipe and filters air that is discharged,

• wherein the suction valve is a check valve that opens in response to a pressure in a space between the base part and the cover part being higher than a pressure in a space between the nose part of the user and the base part, and the discharge valve is provided with a check valve that opens in response to a pressure in the space between the nose part of the user and the base part being higher than a space pressure in the discharge pipe.