Upgrade your Flsun T1 (Pro) 3D printer with this Silent Module, which will further reduce the noise during 3D printing. By installing the cooling fan, the noise level is reduced to only 55 dB, without sacrificing effective cooling. The air duct diameter has been increased and the large impeller design reduces the noise caused by impact with the fan housing. Thanks to the damper design, the friction between the airflow and the pipe is reduced for improved airflow consistency.