I noticed that no one replied to either of you so I figured I would chime in! The Xbox One S still has a "power bar", it's just smaller and internal now. On that note, that's literally just the power supply, not a surge protector of any form. If you're worried about your tech you're going to want a surge protector.
As for dusting the console, I'd say it depends on what you're doing. I just dust the surface level of my consoles on a weekly basis with one of those Swiffer dusters. As you can't really open modern consoles without voiding the warranty, I never use anything like a can of air and I've never needed to. That being said, if you do feel like trying something like that, definitely make sure the console is fully powered off.