The Mill Gentle Air features an elegant, modern design, and on its stand, it appears as if the heater is gently floating in the air. This portable, stylish heater operates quietly and can be used without supervision. As its name suggests, the Mill Gentle Air is a gentle source of heat that neither burns dust nor dries out the room air. Its unique closed shape allows it to distribute heat much faster in the room compared to traditional oil-filled radiators. As a result, it heats a room 29% faster, as the closed design allows hot air to rise more quickly and distribute warmth more efficiently. We call this the Mill Heat Boost technology.