Spraying device for coating surfaces, wherein the spraying device comprises: a baffle; a spray head (14; 70) with a bell-shaped spraying capsule; wherein the spray head (14; 70) is arranged in the baffle; wherein the spray head (14; 70) is formed to distribute droplets; wherein the baffle is formed to obstruct the dispersion of droplets in at least one unwanted direction; wherein the spraying device is formed, such that in operation, a part of the droplets introduced into the spraying device delineates a circulation, which is encapsulated by the spraying capsule; wherein the spraying device is manually operable; wherein the baffle has an inner side and an outer side; wherein the baffle on its inner side forms a volume with a surface to be sprayed; wherein the droplets are sprayed into the volume through the spray head (14; 70) and the volume encapsulates the droplets; wherein the baffle on the inner side comprises a greater distance to the surface (16; 96') to be sprayed on than on the outer side; wherein at least one opening (4; 6; 98) is formed in the baffle for supplying air; wherein the at least one opening (4; 6; 98) forms a connection between the inner wall and the outer wall of the baffle; wherein air which is located in the volume can be drawn off at least partially with an extraction system; and the air contains the droplets as mist; wherein a suction channel is formed between the inner wall and the outer wall of the baffle; and a gap is defined between the surface (16; 96') to be sprayed on and an edge of the spraying capsule; wherein the spraying device is adapted for suctioning blocking air through the gap into the suction channel at the inlet of the suction channel, whereby, at the inlet of the suction channel, the blocking air from the outside and an overspray collide; such that a dispersion of the overspray from the spraying capsule is prevented; characterized in that the spraying capsule is made of Plexiglas for controlling the spraying process and comprises a roller system for defining the gap between the surface to be sprayed and an edge of the spraying capsule, wherein the roller system permits a hand-guiding of the spray head parallel to the surface to be sprayed with a constant distance. a baffle; a spray head (14; 70) with a bell-shaped spraying capsule; wherein the spray head (14; 70) is arranged in the baffle; wherein the spray head (14; 70) is formed to distribute droplets; wherein the baffle is formed to obstruct the dispersion of droplets in at least one unwanted direction; wherein the spraying device is formed, such that in operation, a part of the droplets introduced into the spraying device delineates a circulation, which is encapsulated by the spraying capsule; wherein the spraying device is manually operable; wherein the baffle has an inner side and an outer side; wherein the baffle on its inner side forms a volume with a surface to be sprayed; wherein the droplets are sprayed into the volume through the spray head (14; 70) and the volume encapsulates the droplets; wherein the baffle on the inner side comprises a greater distance to the surface (16; 96') to be sprayed on than on the outer side; wherein at least one opening (4; 6; 98) is formed in the baffle for supplying air; wherein the at least one opening (4; 6; 98) forms a connection between the inner wall and the outer wall of the baffle; wherein air which is located in the volume can be drawn off at least partially with an extraction system; and the air contains the droplets as mist; wherein a suction channel is formed between the inner wall and the outer wall of the baffle; and a gap is defined between the surface (16; 96') to be sprayed on and an edge of the spraying capsule; wherein the spraying device is adapted for suctioning blocking air through the gap into the suction channel at the inlet of the suction channel, whereby, at the inlet of the suction channel, the blocking air from the outside and an overspray collide; such that a dispersion of the overspray from the spraying capsule is prevented; characterized in that the spraying capsule is made of Plexiglas for controlling the spraying process and comprises a roller system for defining the gap between the surface to be sprayed and an edge of the spraying capsule, wherein the roller system permits a hand-guiding of the spray head parallel to the surface to be sprayed with a constant distance.