As I'm new to window cleaning, I'm a bit confused as to all the different types/styles of WFP brushes available. When or why, would you use ... Mono filament,...Flocked,....and Boars Hair brushes. Pencil jets,...Fan jets.... what's the difference in the cleaning ability of these. Do people use a selection of brushes on the same job, or are there specific brushes for a certain type of job. Sorry for the Dumbo questions, but the more styles of brushes I see advertised, the more confused I'm getting :unsure: .