air test fan installed in front door opening testing airtightness leakage new self build UK
air test fan installed in front door opening testing airtightness leakage new self build UK
Size: 3840px × 5760px
Location: Cotswolds UK
Photo credit: © Mark Boulton / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: air, airtightness, efficiency, energy, fan, leakage, test, testing, tight, uk