Do any of you open the windows when it rains? I think everyone rushes to close them. I heard that we actually have to do just the opposite. As far as possible we have to keep them open. Rain has a great purifying power and is able to oxygenate an interior space in just a few minutes. The droplets collect and remove the contaminating particles, eliminating the contamination. By just ventilating for a while we can breathe much more oxygenated air in that interior space. I'm definitely going to start leaving the windows open #NoiseCash