Sign up for an Award
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
By riding a motorcycle, you will encounter two situations:
1. Earth's air pollution, riding a motorcycle to wear masks, not environmentally friendly and can not be reused.
2. Isolated from polluted air is not strict, hot and easy to have bacterial breeding.
So the helmet mounted on the canisters, direct block dirty air and has 6 stomatal ventilation and is not hot.