PROBLEM TO BE SOLVED: To provide a spraying device capable of producing a large amount of fine particles having a fine particle diameter capable of causing Brownian motion. SOLUTION: The spraying device of the present invention is connected to an atomization tank 11, an atomization device 12, a blower 13 that blows air from a blower port 11b, an outlet 11c, and a top surface of the atomization tank 11. It has one baffle plate 14a and a second baffle plate 14b. The first baffle plate 14a is provided with a first edge portion 14ae arranged at a predetermined distance from the inner surface of the atomization tank 11 on one end side in the width direction, and the blower port 11b is provided with the first baffle plate 14a and the atomization tank 11. Is disposed on one end side in the width direction with respect to the connection portion 14ac. The second baffle plate 14b includes a second edge portion 14be arranged at a predetermined distance from the inner surface of the atomization tank 11 on the other end side in the width direction, and the outlet 11c includes the second baffle plate 14b and the atomization tank 11. It is arranged on the other end side in the width direction with respect to the connecting portion 14bc. [Selection diagram] Fig. 2B【課題】ブラウン運動を起こすことができる程度の微細な粒径を有する微粒子を大量に生成することが可能な噴霧装置を提供する。【解決手段】本発明の噴霧装置は、霧化タンク１１と、霧化デバイス１２と、送風口１１ｂから送風する送風機１３と、送出口１１ｃと、霧化タンク１１の天面に接続される第一バッフルプレート１４ａ及び第二バッフルプレート１４ｂとを備える。第一バッフルプレート１４ａは霧化タンク１１の幅方向一端側の内面と所定の間隔を隔てて配置される第一エッジ部１４ａｅを備え、送風口１１ｂは第一バッフルプレート１４ａと霧化タンク１１との接続部１４ａｃよりも幅方向一端側に配設される。第二バッフルプレート１４ｂは霧化タンク１１の幅方向他端側の内面と所定の間隔を隔てて配置される第二エッジ部１４ｂｅを備え、送出口１１ｃは第二バッフルプレート１４ｂと霧化タンク１１との接続部１４ｂｃよりも幅方向他端側に配設される。【選択図】図２Ｂ
