Mountain Air vs Cleanroom white
Where Mountain Air belongs to Dulux's range, Cleanroom white is a RAL Classic color. Hue-wise, Mountain Air belongs to the green-white family and Cleanroom white to the beige-white family. They have nearly identical light reflectance values (88 vs 89), so they'll read as similarly Light in most lighting conditions. The ΔE 4.3 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Mountain Air vs Cleanroom white in Real Spaces
1 real room side by side. Mountain Air and Cleanroom white are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. The distinction reads clearly at room scale, making the choice between them concrete.
Color Details
Mountain Air vs Cleanroom white Simulated Comparison
5 simulated room previews — drag the slider on each to see Mountain Air on one side and Cleanroom white on the other.
Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.
More Mountain Air comparisons
See how Mountain Air stacks up against other well-photographed colors across different brands and tones.
