When purchasing an integral helmet (with face and jaw protection), duly approved, the user must pay attention to:
Aerodynamics, soundproofing and ventilation system.
The price, the level of soundproofing and the ventilation system, without giving importance to aerodynamics, because it does not influence comfort.
The price, the ventilation system and the aerodynamics, without worrying about the soundproofing level that is the same for all helmets.
Correct answer :a
Driving license test
