Major US airlines have now banned face masks with valves or vents, as CDC research has cast doubt over their effectiveness. From now on, passengers cannot board any American Airlines, Alaska Air, Delta, Frontier, JetBlue, Southwest, Spirit or United flight when wearing such masks – here’s why. “A mask may not protect the wearer, but it may keep the wearer from spreading the virus to others”  says the Centers for Disease Control and Prevention (CDC), which is exactly why masks … Continue reading US Airlines Ban Masks with Valves