PROBLEM TO BE SOLVED: To provide nasal cavity cleaning equipment which permits cleaning water having a high cleaning and sterilizing effect to be simply generated.SOLUTION: The nasal cavity cleaning equipment (10) includes: a tank (20) storing the cleaning water to be supplied into nasal cavities a water supply mechanism (30) including a water supply route (31) having one end connected to the tank (20), a transfer portion (32) transferring the cleaning water in the tank (20) to the water supply route (31) and an ejection portion (33 and 90) connected to the outflow end of the water supply route (31) and ejecting the cleaning water into the nasal cavities an electrode pair (51 and 52) to cause streamer discharge in the water in the tank (20) and a power source portion (65) applying voltage to the electrode pair (51 and 52), and is provided with an electric discharge generating machine (50) structured so as to generate hydrogen peroxide in the water by the streamer discharge.COPYRIGHT: (C)2012,JPO&INPIT【課題】洗浄・除菌効果の高い洗浄水を簡便に生成できる鼻腔洗浄装置を提供する。【解決手段】鼻腔洗浄装置(10)には、鼻腔内へ供給する洗浄水を貯留するタンク(20)と、一端がタンク(20)に接続される給水路(31)、タンク(20)内の洗浄水を給水路(31)へ搬送する搬送部(32)、及び給水路(31)の流出端に接続されて洗浄水を鼻腔内へ放出する放出部(33,90)を含む給水機構(30)と、タンク(20)内の水中でストリーマ放電を生起するための電極対(51,52)と、電極対(51,52)に電圧を印加する電源部(65)とを有し、ストリーマ放電によって水中で過酸化水素を生成するように構成された放電発生機(50)とが設けられる。【選択図】図2