Okay, understood.

Excuse me, it's pretty hard to work in the dark here. Could you light the place up for me?

We've installed an elevator for you to do work, so please ride it up and wipe down each floor in turn. The verb used is "blow/whistle" (吹いて), but because of the cloth Parsee's holding in panel 2, it's probably meant to be 拭いて (wipe).