How would perfume diffuse at high altitude?

At high altitude, perfume diffusion is influenced by lower air pressure and reduced oxygen levels, which can affect how scent molecules disperse. The decreased air density may lead to slower diffusion rates, causing scents to linger less intensely compared to sea level. Additionally, lower temperatures often found at high altitudes can also alter the volatility of the fragrance, potentially making it less perceptible. Overall, the combination of these factors may result in a more subtle scent experience.