@evolutionarypsy @RadioFreeTom BTW, ventilation yes, but "one way masking" is PARTICULARLY unrealistic in airports.
Vulnerable people have to eat and especially stay hydrated during long travel, which means taking their masks off. Imperative to keep infectiousness out of the air, not just stopped by PPE.
@evolutionarypsy@RadioFreeTom顺便说一句，通风是的，但“单向掩蔽”在机场尤其不现实。
易受伤害的人必须进食，尤其是在长途旅行中保持水分，这意味着要摘下口罩。必须防止空气中的传染性，而不仅仅是通过PPE来阻止。