Luftfylt

Luftfylt is a Norwegian adjective meaning "filled with air." The word is formed from luft (air) and fylt (filled). It describes objects or spaces that contain air rather than liquids or solids. Common uses include air-filled cushions or pillows, inflatable toys, balloons, and tires that contain air under pressure. The term is also used in packaging, where air-filled cushions or bags are used to protect items during shipment. In engineering and architecture, air-filled cavities contribute to insulation and buoyancy in certain designs.

In broader usage, luftfylt conveys a sense of lightness and pliability. It contrasts with terms for water-filled (vannfylt) or solid-filled components, and with gas-filled (gassfylt) in contexts where distinguishing between air and other gases matters. The phrase is primarily descriptive rather than a precise technical designation, and its exact meaning can vary with context—from consumer products to technical discussions about insulation, buoyancy, or cushioning.