The way the sprayers function is different. HVLP sprayers apply a thin film of paint and feature a smaller tip, which allows them to spray a smaller amount of paint in each pass than conventional sprayers. The HVLP also uses a much finer mist. This is important because a smaller amount of paint means the paint can’t get as deep into the wood, which means you have to apply more coats to get a smooth finish. HVLP sprayers create less overspray and they can spray water-based paints, while conventional sprayers can’t. Conventional sprayers are better at getting into tight spaces and they can paint a wider range of materials.