摘要 |
An air contaminant filtration system (10) for a cabin (12) comprising an external air drawing system (14) for drawing air from an atmosphere surrounding the cabin (12), an internal air extraction system (16) for drawing air from an atmosphere within the cabin (12), a main filtration system (18), and a filtered air delivery system (20). Air drawn from the external drawing system (14) and from the internal air extraction system (16) is directed towards the main filtration system (18) for filtration and the filtered air is then directed towards the filtered air delivery system (20) for delivery to the cabin (12). |