Take control of your growth cycles and produce more profitable blooms with an exhaust fan system from J&D. Moving air through your greenhouse or nursery with exhaust fans is an excellent way to manage the climate for your plants and produce. J&D manufactures a complete line of galvanized and fiberglass exhaust fans that are perfect for any application. Our fiberglass exhaust fans are corrosion and rust-resistant which means they're ideal for any growing environment. Whether you require a 12" indoor/outdoor shutter fan or an easy-to-install light deprivation exhaust fan, J&D has the right ventilation system for your needs.