If you want something that is universally accepted take a close look at these.
http://www.pbreview.com/products/reviews/4899/
They are possibly the best full face protection available, they are easy to find accessories or replacment parts for and best of all, have a very slim clearance so they shouldnt interfere with sighting your weapon. ( This was a huge issue with me and paintball goggles, before I got these. )
They are very light weight, more then double the safety requirments for paintball goggles ( get shot in the lense with a 400 fps bb, just a quick wipe with a micro fiber cloth and it's good as new ), excellent feild of vision, the straps will not move once you adjust them to your head etc, I could go on all day.
This is probably the best you can get if you don't mind spending the money.
You can get last years for a bit less money, but trust me get the Pro model, they are much lighter and seem more durable.