According to life circle assessment theory

the environmental effect indicators and corresponding quantification method were introduced in this paper. Then a household air conditioning was taken as an example

and its environmental effect on human health

ecosystem quality and resource consumption were analyzed. Meanwhile

emission of greenhouse gases and polluted gas were carried out. The results show that its total environment indicator score is 690 Pt. Score on ecosystem quality (502.65Pt) is the highest

and score on resource consumption (89.46Pt) is the lowest. Because of electrical power consumed

the operation phase has the most influence indicator score on environment

which reaches to 681Pt. To reduce the environmental impact

more attention should be paid on power saving and new energy utilization. Finally

during life circle of a 1.5p household air conditioning

its CO2 emission is 1.89×104 kg and SO emission is 78.017kg. The evaluation results provide necessary information to air conditioning industry to improve the environment characteristics of air conditioner and supply the valuable information for the environmental decision-making to customers

which makes them consider the cost of the technical characteristics and also consider the environmental impact.