clean dust from inside my MacBook pro

I opened the bottom panel of my MacBook Pro recently and was shocked to discover how much dust (and a few dead gnats) was in there. It is mostly around the perimeter. Is there a way I can safely clean it out or do I need to take it to a professional?

I apologize if this is a repeated question on this forum. I was simply trying to search for an existing thread but the site kept bringing me back to "post" a new question.

Thank you.