Provided is a wind direction adjustment device for an air conditioning blow-out port, the wind direction adjustment device comprising: a surface plate part that is disposed in front of the air conditioning blow-out port from which air having been air conditioned by an air conditioner is blown out, and that receives the air which has been blown out from the air conditioning blow-out port an attachment part for attaching the surface plate part to the front of the air conditioning blow-out port and an anti-bacterial member that is disposed on the surface plate part and that includes an anti-bacterial agent which is a substance having disinfecting properties, and a bag body which accommodates the anti-bacterial agent in a bag material having micropores. The surface plate part includes: a tray-shaped casing part in which the anti-bacterial member is stored and a cover part that partially covers an upper opening of the casing part and that has a ventilation port which restricts the ventilation amount of air that is blown out from the air conditioning blow-out port and passes through the anti-bacterial member. Due to this configuration, the substance having disinfecting properties can be effectively diffused into a room by means of a simple configuration.Linvention concerne un dispositif de réglage de la direction du vent pour un orifice de soufflage de climatisation, le dispositif de réglage de la direction du vent comprenant : une partie de plaque de surface disposée en face de lorifice de soufflage de climatisation à partir duquel lair ayant été climatisé par un climatiseur est soufflé, et recevant lair qui a été soufflé à partir de lorifice de soufflage de climatiseur une partie de fixation destinée à fixer la partie de plaque de surface à la partie avant de lorifice de soufflage de climatisation et un élément antibactérien disposé sur la partie de plaque de surface et comprenant un agent antibactérien, cest à dire une substance présentant des propriétés désinfectant
