Lenovo T1 User Manual page 11

Installation
2.Install the dust collector
Place the dust collector 6mm or more away from the wall on a flat surface
0.06m away from the wall
Ensure that there is more than 1.2-meter clear space in front and more than
0.5-meter clear space on both sides of the dust collector.
Note:
If choosing the charging base, please ignore the installation of dust collector
When charging base and dust collector exist at the same time, place them in