Maintaining good standards of cleanliness and hygiene in a workplace is of utmost importance for ensuring the safety and health of employees. If a workplace is not managed properly, persons employed therein will have the likelihood of suffering from physical, chemical and biological hazards. For instances, inhalation of excessive dust, exhaust, asbestos, etc., which can seriously affect our respiratory system. Infectious diseases such as plague and dengue fever will spread by rats and mosquitos at workplaces. Poor cleanliness and hygiene in a workplace can negatively affect the public. Also, dust, sewage, noise, construction and demolition wastes as well as bacteria and mosquito pests will cause nuisance to the public and the environment. Thus, contractors have the responsibility for maintaining the cleanliness and hygiene of the workplace so as to allow employees to work safely and healthily.

It is necessary to ensure that maintaining good standards of cleanliness and hygiene in a workplace requires not only the decision of top managements, but also the execution of managerial staff. Workplace managers and supervisors should therefore be equipped with knowledge in workplace hygiene and environment, so as to facilitate their implementation of good practices in workplace hygiene and environment.