Indoor environmental condition in musolla at shopping complexes in Perak / Siti Hajar Mat Ali and Nazhatulzalkis Jamaludin

This paper focuses on improving indoor environmental quality (IEQ) in musollas located within shopping complexes in Perak, Malaysia. IEQ plays a vital role in ensuring occupants' health, well-being, and comfort. Factors such as lighting, air quality, humidity, and thermal conditions significantly impact IEQ. Poor indoor conditions can lead to increased allergy and asthma symptoms, infectious diseases spread, and sick building syndrome (SBS). The study aims to identify key elements affecting IEQ and recommend strategies for enhancement. The research uses multiple approaches, combining face-to-face interviews using paper surveys and online surveys through Google Forms to gather data from respondents, including shopping complex workers, sellers of food courts, civil servants, private sector workers, and students who use musollas. Literature reviews highlight the importance of indoor air quality (IAQ), thermal, visual, and acoustic comfort in creating a serene prayer environment. The study identifies challenges specific to musolla spaces and emphasizes the significance of low VOC materials for improved IEQ. Additionally, the report delves into the issues concerning IEQ, such as allergen exposure and moisture problems, and proposes solutions to reduce allergy and asthma symptoms. The findings contribute valuable insights to enhance IEQ in musollas, ensuring a healthier, more comfortable, and spiritually uplifting prayer space for building occupants in shopping complexes.