Originally Posted by
320busboy
If you have access, go and have a read of
OIT 999.0008/20 or ISI 21.00.00119
a bit of info. All of the air in Airbus cabins is, on average, completely changed every 3 minutes(during cruise) - even after taking account of filtered and recirculated air. This is a much higher rate of flow than people experience in other indoor environments, and means that passengers are provided with about 80 times as much air as they need to breathe.
The air in Airbus aircraft cabins is a mix of fresh air drawn from outside, and air that has been passed through extremely efficient filters, which remove particles in the air down to the size of microscopic bacteria and virus clusters (with an efficiency of better than 99.99 per cent). These filters – called High-Efficiency-Particulate Arrestors (HEPA) – have been shown in tests to provide air that meets the standards set for hospital operating theatres. particles within the size range of typical Viruses are captured by the HEPA filters with in excess of 99.99% efficiency
COVID-19 is approximately 0.125 micron (125 nanometers) in diameter. It falls squarely within the particle-size range that HEPA filters capture with extraordinary efficiency: 0.01 micron (10 nanometers) and above
I’d prefer to be on the plane...
Which would suggest that the EASA advice is misleading ?