There is disclosed a hand washing device including a washing chamber having an enclosed interior, the interior having an interior surface. The washing chamber has a forwardly and upwardly facing mouth through which a users hand or hands may be inserted into the interior. The mouth has a lip that is directed inwardly into the enclosed interior. The mouth is sufficiently large to allow insertion of a users hand or hands without touching the lip. The interior surface is smooth and without corrugations or similar dirt traps, and the interior of the washing chamber is configured as a funnel from the mouth towards a drain, the drain being located at a lowermost part of the interior. Spray nozzles are mounted in flush manner in the interior surface, and at least some of the spray nozzles are angled spray nozzles angled at an angle from 5° to 25° to a line substantially normal to the interior surface at the location of the respective nozzle, the angle being in a direction away from the mouth. The device further includes at least one exhaust port in the interior surface connected to an aspirator configured to generate an airflow through the interior from the mouth towards the at least one exhaust port, thereby to reduce egress of spray through the mouth.La présente invention concerne un dispositif de lavage des mains qui comprend une chambre de lavage présentant un intérieur clos, lequel comporte une surface intérieure. La chambre de lavage possède une embouchure faisant face vers lavant et le haut, à travers laquelle la ou les mains dun utilisateur peuvent être insérées dans lintérieur. Lembouchure possède une lèvre dirigée vers lintérieur, dans lintérieur clos. Lembouchure est suffisamment grande pour permettre linsertion de la ou des mains dun utilisateur, sans toucher la lèvre. La surface intérieure est lisse, sans ondulations ni autre zone de rétention des saletés. Lintérieur de la chambre de lavage est conçu à la façon dun entonnoir, de lembouchure vers un drain, celui
