6 Books About Dryer Ventilation You Should Read
https://www.slideshare.net/sandir3lj4/12-dos-and-donts-for-a-successful-dryer-vent-cleaning-fort-worth-tx
Afterwards, they wash away the dust on the outer layer of duct or vent. It has sensors that will blow after the dryer reaches a certain temperature. These are worth using to maintain your surrounding air clean.