‘雾气’ (wù qì) is a compound noun meaning ‘mist’ or ‘foggy air’ — the visible, suspended water droplets that reduce visibility near the ground, especially in cool, humid conditions. The first character 雾 (wù) means ‘fog’ or ‘mist’ on its own, while 气 (qì) means ‘air’, ‘vapor’, or ‘atmospheric substance’. Together, they emphasize the *airy, atmospheric nature* of mist — not just the visual phenomenon, but the moist, hazy air itself. It’s more poetic and descriptive than the simpler 雾, often used in literary, scenic, or weather-related contexts.

This word commonly appears when describing natural landscapes (mountains, lakes, forests), early-morning cityscapes, or indoor condensation (e.g., on windows or mirrors). Unlike 雾, which can refer to thick, low-lying fog that disrupts transport, 雾气 suggests a lighter, softer, often transient haze — evoking atmosphere, mood, or quiet beauty rather than hazard. It’s neutral in register but leans slightly formal or literary, rarely used in technical meteorological reports.