VELUX smoke ventilation windows are CE marked and have been tested in regards to the parameters of EN 12101-2 • All VELUX smoke ventilation products are updated in accordance with the harmonized standards in the EN 12101 series regarding smoke and heat control as soon as the standards come into force more.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.