Finding the right protective gear is important for playing Airsoft safely. Without proper equipment, accidents can and do happen. Be safe play safe. The face mask is an important piece of protective gear and will protect face.
Face masks are an important part of safety in Airsoft but can be a bit awkward to wear or take aim with them on. They restrict breathing a little as some carbon dioxide will remain in the mask. Myself i would not be concerned with this slight problem as it is outweigh by the benefits.One great benefit is that it can and will stop your front teeth being knocked out. A bb coming at you at 350 feet per second will take out a tooth ( Iwill discuss eye protection on Safety Goggles) and that speed and power is increased by sniper fire where speeds up to 450 and more per second can be reached. Beware and be safe that sorry.
Of course there is no rules to say you must wear an Airsoft safety mask and lots of players make do with a neck muffler or scrim net and the choice is yours.I am just telling you the benefits of wearing a mask.
Even if no one shoots at your face ricochet can happen and often do and in the heat of an exchange anything can happen. see our airsoft rifles
Head-shots are part of Airsoft and in close quarter battle shoot outs anything goes and little time to take careful aim due to the fast pace of the game with automatic fire going off all over the place.
Being hit in the face by a bb can hurt and a face mask will stop the pain in that part of the face.I have seen in our shooting range the damage a pellet can do. Aluminum and wooden target bent out of shape and riddle with holes. Just imagine what it can do to flesh.A lot of players are now buying the face mask with ear protection combined with a helmet. This gives good all round protection and looks good. See our bolle safety glasses
As said before there is no legal requirement to wear a mash but we advise you to do so.