Hello everyone!! As in the title.... I have a window and I want to run an air intake and exhaust line. All the designs I saw are very visible from the outside. The safest design I was considering involves replacing the glass with plywood and making holes in it. With the proper materials (and painting it so that the plywood blends with the colour of the rest of the house) it looks more or less like ventilation holes for the house.... still, I'm not totally convinced... any better solutions out there? ... If anyone has got ideas/drawings/pictures/knowledge to share I would really appreciate. Thanks a lot!!!