It is a common knowledge that the Indoor Air Quality (IAQ) and Energy Saving have rooms for improvements in the commercial buildings in Hong Kong. The reasons behind include technical and financial difficulties because the existing buildings lack the ability to monitor and process the environmental data. The traditional solution would be cost-ineffective due to the extra works on cabling and network infrastructure. Our AirPort Light is capable of improving IAQ, being portable and energy saving. Our device collects environmental data from built-in sensors including Passive InfraRed, Particulate Matter, CO2, Temperature, Humidity and Air Pressure. After collecting data, the microcontroller will process the data to determine whether the current status is satisfactory or below standard. Afterwards it will transmit the results to the backend system. The backend system will control the air conditioning system and the lighting system to enhance the environment. Our solution is an all-in-one solution as never before to overcome the obstacles from the existing commercial buildings to bring a GREENER and HEALTHIER environment in a COST-EFFECTIVE way. This design is applicable to all buildings around the world. In the long term, it will have a huge impact in reducing the global energy consumption and improving IAQ.