Awesome Full Faced Snorkel Mask L/XL Blue/Grey MORKBLU 02

"AWESOME" snorkel mask is divided into two chambers with one-way valves controlling air movement. Fresh air flows in the eye chamber through the center tube of the snorkel and then flows through one-way valves to the mouth chamber. Exhaled air goes out through separate dedicated exhaust channels along the outside of the mask and then through the outer two tubes of the snorkel.This managed one-way airflow ensures only fresh air enters the eye chamber so it does not fog. It also ensures exhaled air is quickly forced out to prevent any CO2 buildup.