A sprayer includes: a sprayer body a nozzle extending from the sprayer body and an irradiation unit disposed on a leading end of the nozzle and emitting light that is oriented and diffuses in a leading end direction of the nozzle. The nozzle includes: an elongated nozzle body extending from the sprayer body and having a curved portion on a leading end side and a nozzle head disposed on a leading end of the nozzle body. The irradiation unit is arranged inside a curve shape of the curved portion.
