In addition to providing technical and mechanical support to other operational departments, your hotel's maintenance or engineering staff can do more than anyone else to improve the impact your hotel has on the environment.
Impacts
Engineering is responsible for all equipment's efficiency, routine checks and repairs
Maintenance or engineering department also generates various "useful" waste such as eliminated equipment
Maintenance personnel or engineers take care of the HVAC ( Heating, Ventilation, and Air conditioning) equipment, which largely controls a hotel's indoor air quality.
Take initiative and examine the impacts of various flows of resources going through your maintenance or engineering department. Then learn new ideas on how to control and manage them.