Roseomonas aerofrigidensis is a species of Gram negative, strictly aerobic, coccobacilli-shaped, pink-colored bacterium. The bacteria was isolated first isolated from a laboratory air-conditioning system in South Korea, and the new species name was proposed in 2017.[1] Another species of Roseomonas, R. aeriglobus, was also isolated from an air conditioner.[2]
The optimum growth temperature for R. aerofrigidensis is 30 °C, but can grow in the 10-45 °C range. The optimum pH is 7.0, and can grow in pH 4.5-9.5.