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What is a trickle ventilator? Why do I need trickle ventilators? Why not just open the window? Can I use a trickle ventilator in a cold climate? Do I have to worry if I leave my trickle ventilator open when it is raining? Will insects be able to get in through a trickle ventilator? When do I use my trickle ventilator? Are trickle ventilators expensive to operate? Should I request "trickle ventilators" if I am having old windows replaced? Should "trickle ventilators" be installed in windows for new construction? How many trickle ventilators do I need? Are trickle ventilators used only in residences?
