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Sarah Sandison Lewis Profile picture
Sarah Sandison Lewis
@SarahASLewis
Research & Policy Director at UK Passivhaus Trust, Certified Passivhaus Designer, self-build EnerPHit-er, mother of two rebel girls & author of PHPP Illustrated
Sep 1, 2022 • 5 tweets • 3 min read
The case for #MVHR…we retrofitted our home to the #passivhaus #EnerPhit standard, family and friends thought the MVHR was intriguing but couldn’t really understand the point “can’t you just open windows Sarah?” Here is why our MVHR is amazing for health & wellbeing in 3 graphs… #MVHR installed 3rd June 2021 - where the grey line is. Before the 3rd of June we were diligently opening windows and putting up with draughts, carefully tracking levels on our monitoring system but still could avoid high daily averages well over 1000ppm Image