I've seen that video and a shopping centre air conditioning system is vastly different than an aircraft filtration system.
Read the article, for example:
In fact, because of the high-efficiency filters on most commercial airlines and the frequency the air is recirculated and filtered, the air you're breathing on your flight is likely much cleaner and less contaminated than most office buildings and is on par with the air in most hospitals.
Breaking News...Qantas wooosh tomorrow...Virgin in Administration, page-26
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