Affiliations 

  • 1 Universiti Teknologi Malaysia
MyJurnal

Abstract

Healthcare facilities in a hospital has diverse indoor cleanliness due to the different health
needs by the patients. Among the facilities, an operating room was identified as a critical space that
required high cleanliness environment. In recent years, an ISO 14644-1 Standard of Class 1 to Class 7
is prescribed in operating room for better particles concentration and airflow controlled. The objective
of this article is to review the assessment of airborne particles transportation and airflow distribution
in an operating room. This study shows that two main types of ventilation strategies have been widely
installed to control airborne particles trajectory, namely unidirectional airflow system and mixing
airflow system.