Purolator Facet's ever-expanding line of cabin
air recirculation
filters for commercial aircraft is designed to efficiently remove typical contaminants...and in the process, provide a measure of protection to both passengers and crew. Recently, trends in design and operation minimize the introduction of outside
air into the cabin. This is principally because outside
air must first be pressurized through the engines, and this "bleeding" of
air reduces efficiency and increases fuel consumption...
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