I would like to know where to find on the Web a bicycle helmet either with a built-in face shield (covering the actual eyes and face, not just a peak like the brim of a baseball cap), or a separate face shield that you can attach to a helmet to cover your eyes and face.Try not to limit your focus to visors on the time trial style bicycle helmets. No references to motorcycle-only helmets please! I am referring to bicycle helmets.Please link to pictures!
Tough situation; the easy thing to do would be to let it go since you're about to leave. The right thing to do is to police up your battle buddy. You've been in long enough to know that if your battle buddy gets caught sleeping, he won't be the only one in trouble. So? 1. Tell him he's a turd and doing the wrong thing. 2. If he doesn't correct his actions, notify the NCO on duty. Impede his every attempt to be a dirt bag. Turn the fan back on. If he wants to argue about it, let him get loud. When the NCO comes in, make no quams about saying My battle buddy is upset because he wanted to sleep so he turned the fan off to hear you coming. The threat of turning him in should be enough to correct his behavior, if only for the short term. And that's all you have to deal with him for. Or notify your Student Team Leader, Squad Leader, Platoon Sergeant, etc. Work it up your student chain of command and give them the opportunity to help you.
These fittings come in numerous materials and pressure ratings. You need to specify what exactly you are interested in. You can then do a web search for the information you need.