DynaVap is an American vaporizer brand known for its innovative, battery-free thermal extraction devices. Founded by inventor George Breiwa, DynaVap focuses on portable vaporizers designed to heat dry herbs without combustion. Unlike conventional electronic vaporizers, DynaVap devices do not require built-in batteries. Instead, they use a proprietary temperature-indicating cap that produces an audible click when the device reaches the appropriate heating point. Users can heat the device with a torch, lighter, or induction heater. The brand is recognized for its compact designs, modular construction, durable materials, and distinctive battery-free operating system. Its product range includes the M Series, B Series, VonG, WoodWynd, Hyper Series, VapCaps, induction heaters, and a wide selection of replacement parts and accessories. DynaVap designs, engineers, and manufactures its vaporizers in-house in the United States, with a strong focus on portability, modularity, thermal extraction, and combustion-free vaporization.