[johnny bravo]

i normally go up ladders,     going to stop using them now, too dangerous.    all crap comes out of vents.   

[Shrek]

Wash them like normal , then wipe of the drips.
Then wrap a hair towel around your brush once everything has been washed and wipe with the hair towel. All done from the ground

You can get these cheap as chips , but this is an example

https://www.amazon.co.uk/Laicky-Microfiber-Absorbent-Turban-Buttons/dp/B07Y6LMM92

[david mark]

Best way for me is just say no