PPRuNe Forums - View Single Post - Latest research: Bleed Air Ducts can not be cleaned, pollutants penetrate human body
Old 2nd Feb 2020, 07:09
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LAME2
 
Join Date: Aug 2007
Location: Australia
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One of many threads I found

https://www.pprune.org/rumours-news/...ight=146+bleed
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