The new Royal London Hospital in Whitechapel, east London
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New hospital is 'hermetically sealed and the air filtered'

David Docherty, head of estates at the new Royal London Hospital, part of Barts Health NHS Trust, talks about the building's unusual ventilation system.

He explains how the building is hermetically sealed, and how all incoming air is filtered to ensure patients breathe fresh air.

  • 24 Apr 2013