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IMPROVING INDOOR AIR QUALITY FOR PREVENTING TRANSMISSION OF COVID-19 AT BACTIGUARD MALAYSIA SDN. BHD AND BACTIGUARD SOUTH EAST ASIA
Diroshaa Subarmaniam1, Mimi H. Hassim2.
According to the World Health Organization (WHO), Covid-19 was regarded as a pandemic in the year 2020. However, the status eventually changed to endemic in 2022 since there are still until now, cases being reported in daily basis, but mostly those infected persons will only experience reversible health effects, with almost none resulting to death after all countries applied the vaccination and booster program including Malaysia. Covid-19 spread mostly by close contact and respiratory droplets. Covid-19 is a viral transmission via small airborne microdroplets or known as 'aerosols'. According to current information on the airborne transmission of SARS-CoV-2, inhalation at distances greater than 1-2 m from an infected source can lead to transmissionAs a result, optimising ventilation and air quality in indoor areas is crucial to reducing this risk of airborne transmission, especially in workplace. Appropriate ventilation distribution ensures that appropriate dilution is achieved. Filtration is the most effective way for HVAC systems and small particles are removed most effectively by HEPA filters. The purpose of this research was to analyse potential transmission of Covid-19 at Bactiguard Malaysia Sdn. Bhd. and Bactiguard Malaysia South East Asia. The research was equipped with survey questionnaire to assess employee knowledge and awareness against transmission of Covid-19 by offering insight of indoor air properties that can be adapted at Bactiguard Malaysia Sdn. Bhd. and Bactiguard South-East Asia based on statistical analysis performed using SPSS statistical analysis, risk assessment and documentation for continuous monitoring of Covid-19 transmission rate. There are three important findings in this study: (i) The effective indoor air quality comprises of proper ventilation system and engineering control to prevent the spread of Covid-19 as well as other airborne contaminants. (ii) Engineering control is beneficial in terms of isolate employees from hazard and essential to protect employees from Covid-19. (iii) Risk assessment is essential to ensure hazard is being identified and appropriate control measures is taken as well as implemented to control the transmission of Covid-19.
Affiliation:
- No.660, Jalan Idaman 3/4, Taman Perindustrian Senai, 81400 Senai, Johor, Malaysia
- Universiti Teknologi Malaysia Skudai, 81310 Johor Bahru, Johor, Malaysia, Malaysia
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