A respiratory half mask for protection against particles, aerosols, and/or odors, (a) the respiratory half mask being able to be brought from a storage state into a use state by at least one folding process, (b) the respiratory half mask comprising, as mask regions, a nose region having a nose sealing line, a chin region having a chin sealing line and an mouth region arranged between the nose region and the chin region for defining a respiratory space in the use state of the respiratory half mask, (c) the respiratory half mask comprising at least one first connection portion (14.1, 14.2) which connects the nose region and/or the chin region to the mouth region and forms a folding region for the folding process, (d) the respiratory half mask comprising at least one second connection portion (15.1, 15.2) which connects the nose region and/or the chin region to at least one of the other mask regions and which delimits a length of the nose sealing line and/or a length of the chin sealing line, and (e) the second connection portion (15.1, 15.2) extending at least partially on a surface of the nose region and/or a surface of the chin region at a distance from an edge of the nose region and/or from an edge of the chin region between the first connection portion (14.1, 14.2) and the nose sealing line and/or the chin sealing line, characterized in that a nose reinforcer and a chin reinforcer are provided at the mouth region, which are formed in one piece with the rest of the mouth region, the nose reinforcer and the chin reinforcer each extending so as to overlap with the nose region and the chin region, respectively, and having a higher rigidity than the respectively covered nose region and chin region. (a) the respiratory half mask being able to be brought from a storage state into a use state by at least one folding process, (b) the respiratory half mask comprising, as mask regions, a nose region having a nose sealing line, a chin region having a chin sealing line and an mouth region arranged between the nose region and the chin region for defining a respiratory space in the use state of the respiratory half mask, (c) the respiratory half mask comprising at least one first connection portion (14.1, 14.2) which connects the nose region and/or the chin region to the mouth region and forms a folding region for the folding process, (d) the respiratory half mask comprising at least one second connection portion (15.1, 15.2) which connects the nose region and/or the chin region to at least one of the other mask regions and which delimits a length of the nose sealing line and/or a length of the chin sealing line, and (e) the second connection portion (15.1, 15.2) extending at least partially on a surface of the nose region and/or a surface of the chin region at a distance from an edge of the nose region and/or from an edge of the chin region between the first connection portion (14.1, 14.2) and the nose sealing line and/or the chin sealing line, a nose reinforcer and a chin reinforcer are provided at the mouth region, which are formed in one piece with the rest of the mouth region, the nose reinforcer and the chin reinforcer each extending so as to overlap with the nose region and the chin region, respectively, and having a higher rigidity than the respectively covered nose region and chin region.