How to prep a HomePod for sale

My white HomePod started to showing dirty marks on the mesh itself. Does anyone has any tip on cleaning it? TIA : r/HomePod

Apple HomePod mini Review: Dead Cheap, But Is That Enough To Beat Echo?

Black Friday Spotlight: Best Buy's Apple Doorbuster Event Kicks Off Early With Sales on Everything From HomePod to MacBook Pro - MacRumors

Apple HomePod (2nd Gen, 2023): Specs, Release Date, Price

HomePod mini: Buyer's Guide, Should You Buy?

Apple HomePod (second-gen) review: playing it safe - The Verge

HomePod: Features, Price, Specs, Rumors, etc - 9to5Mac

Apple HomePod: Buy Apple HomePod (2023) for Rs 32,900 & get six months of free Apple Music with over 100 mn songs - The Economic Times

HomePod is now sold out at US Apple Store, after it was discontinued three months ago - 9to5Mac

How to set up a HomePod mini

OG HomePods are selling for nearly double MSRP, some over double. And people are actually buying them! : r/HomePod

Apple HomePod Speaker with Siri