CITYBUS is a ''green organisation'' - committed to minimising the potential adverse effects which public service vehicles can have on the environment.
And in polluted Hong Kong this is no small commitment.
Citybus was the first major bus company to introduce air-conditioned buses into Hong Kong on a large scale. These systems considerably reduce the levels of air-borne pollutants which passengers endure in non-air-conditioned buses in addition to providinga pleasant travelling environment.
Citybus' fleet is mainly air-conditioned, with the exception of the private hire buses - which consist of a handful of open-top and vintage buses - and half the buses running on the number 26 route.
The type of power unit utilised in the majority of Citybus meets or betters legislation for the four principal types of emissions from a diesel engine which may pose an environmental risk: gaseous emissions, particles, smoke and noise.
Developmental work is ongoing with engine technology, and Citybus was the first bus operator in the world to have fitted a new generation Gardner engine to one of its vehicles.