I had some extra bucks now and I was wondering if a Lexan (polycarbonate) face shield like this could help me against rubber bullets. The ones that cops here use are Fioacci 8mm rubber bullets that travel at 220m/s or around 497 mph. The lexan faceshield is 1mm thick and it has the EN166 norm. Also does a common hard hat protect you from rubber bullets too? PD: I already have some ballistic goggles (NVG Profile) and a gas mask, I'm thinking of this faceshield for added protection, taking into account baton strikes too