According to tests conducted by eufy engineers, the S1 robot emits different noise levels based on different cleaning modes during its cleaning session. Please refer to the following noise levels:

Quiet mode: 52 dB

Standard mode: 56 dB

Turbo mode: 59 dB

Max mode: 63 dB

When running the S1 robot at night, we recommend using Quiet mode to ensure minimal noise disturbance due to its low 52 dB noise level. Additionally, this mode is ideal for quiet environments such as offices, libraries, etc.

The flexibility of the S1 robot's various cleaning modes allows users to select an appropriate mode based on their specific needs and the desired level of quietness.

If you have any other questions regarding the S1 robot, please don't hesitate to contact us for further assistance.