How to clean my iPhone 5s camera?

I've noticed how clean the camera looks on my sisters phone and I was confused because mine was a bit dim and so so good and we have the same phone. So I looked closely and noticed I had dust inside the camera lens, both the front and back. How do I get rid of this? I have seen the video of the man cleaning his but has anyone ever did this and got their phone back together no problem? I don't wanna mess it up and I don't have all the tools he has, just a tiny screw driver:/.

Dishwasher. Sanitize cycle.