Problem to be solved: to provide a floating foam capable of prolonging the floating time in the air and maintaining a high bactericidal effect.Floating foam b is a floating foam floating in the atmosphere, a spherical form containing at least one of hypochlorous acid and hypochlorous acid, containing functional gas a, and having at least one of hypochlorous acid and hypochlorous acid and surfactant The thus formed functional liquid film L3 is provided.Diagram【課題】大気中での浮遊時間を長くでき、且つ、高い殺菌効果を維持できる浮遊性泡沫体等を提供する。【解決手段】浮遊性泡沫体Ｂは、大気中で浮遊する浮遊性泡沫体であって、次亜塩素酸及び次亜塩素酸イオンの少なくとも一方を含む機能気体Ａと、機能気体Ａを内包し、次亜塩素酸及び次亜塩素酸イオンの少なくとも一方と界面活性剤Ｌ２とを含む球状に形成された機能液膜Ｌ３と、を備える。【選択図】図２
