The article doesn't mention any protective eyewear. When soldering use safety glasses - the heated flux flies everywhere and it's not fun when a hot droplet hits you in the eye.

I am not soldering without safety glasses, lab coat and nitrile gloves. May seem like an overkill, but the flux really goes everywhere and it's not good for your health.

Also don't forget to have a fume extractor! - you don't want to breathe the fumes!

If you can't get one, at very least ensure you have a fan that will blow it away from your face.