I traveled to Denmark for the Holidays with my husband and my 18 months old twins. We arrived at Newark airport 2 hours before take off and the flight took 8 hours and before we were out of the airport in Denmark we had been wearing our masks more than 12 hours. I wore this origami mask on a flight to and from Denmark and it performed beyond my wildest dreams. The mask didn't leave any marks, my ears wasn't irritated and I could breathe easily because of the origami fold. The air flowed out of the sides of the mask and the nose wire held the mask in place. I was wearing the Cork Origami mask with Organic Cotton on the inside and filter.