Semiconductor Technology based Air Sterilizer (STAS) for Indoor Air in Hospital/Clinic Rooms

Abstract

Since the outbreak covid-19, the exposure of bacteria, fungi, and virus is a hazardous situation in outpatient clinics and hospital wards. Moreover, air pollution is a serious health issue that can impact the individuals differently. The major concern of these health issues is not only the polluted air of outdoor atmosphere but also contaminated air is spread inside the houses in urban as well as rural areas. In this regard, this paper proposes a Semiconductor Technology based Air Sterilizer (STAS) that integrated several layers of filtration, purification, sterilization and air freshening. Proposed STAS device is able to purify indoor pollutants and also lower down the amount of other harmful materials like, formaldehyde, moulds etc. simultaneously it can also kill organic substances and bacilli in air. The results have been tested in a hospital of Ghaziabad and the obtained data aftersterilization showed that the application of semiconductor technology used in STAS significantly reduced the concentration harmful gas particles, bacteria, and fungi in the installed environment and shifted the peak of the size distribution of particulate matter particles into coarser particles.