PROBLEM TO BE SOLVED: To provide an algae generation promoting device having a simpler configuration and high degree of freedom of an installation position, and a method for checking influence of dew condensation water using the device.SOLUTION: In an algae generation promoting device 1 and a method of checking influence of dew condensation water using the algae generation promoting device 1, dew condensation water 8 is generated on a test piece 4 by a dew condensation phenomenon, and generation of algae A in the test piece 4 is promoted by the dew condensation water 8. This eliminates the need of conventionally performed sprinkling or the like, the algae generation promoting device 1 having a simpler configuration and high degree of freedom of an installation position is realized, and influence of the dew condensation water 8 to the test piece 4 can be easily checked by using the algae generation promoting device 1.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】より簡易な構成で、設置位置の自由度も高い発藻促進装置、及び、この装置を用いた結露水の影響の確認方法を提供する。【解決手段】発藻促進装置1および発藻促進装置1を用いた結露水の影響の確認方法では、結露現象により試験体4上に結露水8を発生させ、この結露水8により、試験体4における藻Aの発生を促進させる。これにより、従来行われていた散水等を不要とし、より簡易な構成で、設置位置の自由度も高い発藻促進装置1を実現し、この発藻促進装置1を用いて、試験体4に対する結露水8の影響を容易に確認可能とする。【選択図】図1