空气质量在商业航班

人在经济舱客机
Westend61 /盖蒂图片社

关于航空旅行的常见说法是,如果一个人生病在飞机上,所有其他乘客会生病,因为他们呼吸着同样的空气,但由于空气质量控制板载商业航空公司,这根本不是真的。

如果你打算在国内还是在国外飞,还有你可能想知道有关空气质量您可以在飞行过程中想到一些事情。 Airlines carriers are quick to say that the air you're breathing inflight is recirculated and filtered regularly, which means you're not being exposed to things like bacteria and viruses through the recycled air.

事实上,因为大多数商业航空公司和频率的高效过滤器的空气再循环和过滤,空气你在你的飞行呼吸可能是更清洁,比大多数写字楼少污染和看齐与 air in most hospitals.

飞机的空气过滤系统

大多数飞机有很强的过滤系统。 With the exception of some smaller or much older aircraft, airplanes are equipped with True High-Efficiency Particle Filters (True HEPA) or High-Efficiency Particle Filters (HEPA).

这些过滤系统,然后过滤并从机舱再循环空气,并与新鲜空气混合。 The dirtier a HEPA filter gets, the more efficient it becomes, so it can easily handle the passenger load on a波音747

空气再循环发生相当迅速。 The HEPA filtration system can make a complete air change approximately 15 to 30 times per hour, or once every two to four minutes. According to国际航空运输协会,国际航空运输协会“HEPA过滤器是在捕获大于在已过滤的空气。过滤,再循环空气提供了更高的车厢湿度水平和颗粒物水平超过100%的外部空气系统低99%的空气中的微生物的有效的”。

HEPA过滤器捕获大部分的空气中的颗粒,这意味着他们的捕获标准是在商业空间的期限相当高。 A HEPA filter's complete air change is better than most other forms of transportation and office buildings and similar to the standard for hospitals.

清新的空气再生做出更高的空气质量

新鲜的再循环到空气中的平面中的比率为50-50%,而两件事情发生与再循环空气:而其余部分通过HEPA空气过滤器,其中除去所有污染物的99%以上,包括泵送一些空气被转储舷外 bacteriologic agents.

你抓住的东西在飞机上空降的风险比,因为过滤器和空气交换率的许多其他密闭空间较低。 Even though it may not seem to be the case, especially since cabin pressure can make a simple instance of the sniffles feel like the full-blown flu, the air you're breathing is much fresher than other spaces.

因为在飞机上的通风系统在区域中的行覆盖和八之间的七个成立时尤其如此。 Additionally, the oxygen percentage in a 50/50 cabin on a modern commercial aircraft at maximum load capacity will not drop below 20 percent, so you can breathe easy on your next trip through the skies.

干燥空气是罪魁祸首

这样人们就发现自己咳嗽,即使在空气清洁飞行后,打喷嚏更多。 The culprit is dryness because the typical aircraft cabin is exceptionally dry, probably drier than the air in the desert. This is because, at the altitude most aircraft fly, the moisture content is extremely low. With dried out sinuses and nasal passages, it's actually easier to catch something passed along from another passenger.

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