Air Conditioning in closed areas etc and aircraft?
Helpful member
I saw recently how 9 people were infected from 1 infected person in a restaurant with A/C.
I went check up on the filters etc, They have what is called a MERV rating which goes from 0 to 20. 20 being the best, these will filter the common cold virus and corona virus at 0.03 microns but are extremely expensive . The Best normally available filters are in the MERV range 14 to 16, they are high efficiency and filter particles greater than 1 micron. They are expensive and require regular changes but they do not remove the corona virus! I saw some doctor on TV recommending A/Cs blow the air upwards, the worst possible situation for spreading anything, So Heaven help us.
Anyway if anyone really knows anymore about high performance A/C filters please post.