Fabric ducts and fittings combine and create flexible ventilation systems well-suited for large spaces. Sometimes called air socks, their fabric construction allows for practically limitless customization by allowing users to insert venting outlets precisely where they are needed for air dispersion. Their fabric construction lets them breathe and disperse moisture that collects inside the duct, reducing the chance of mold and mildew forming. They are faster and easier to install than other duct types, which makes them ideal for installations that are temporary or consistently reconfigured such as laboratories and other controlled environments.