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The window is one of the most important aspects of a building. It aims to obtain good lighting and meet the requirements for Indoor Air Quality. A restroom is a place where most surfaces are wet, and it causes the relative humidity to become high. As a result, lighting must be considered in this space. The men's toilet on the second floor of the Bina Nusantara University campus in Malang is the subject of this research. Interviews with building operators, cleaners and firsthand surveys of the location were also undertaken. The author used the results of interviews to help specify the ventilation system. The author utilizes a lux meter to measure the lighting layout. According to the findings, this toilet uses mechanical ventilation in the form of an exhaust fan. On the other hand, this area employs downlights that meet lighting standards in terms of brightness and color temperature selection in the artificial lighting system. In the current situation, there is a shortage of energy efficiency. As a result, this study offers a method for preserving electrical energy. This study uses an Arduino Mega and several sensors to help automate the operation of these electrical devices. [ABSTRACT FROM AUTHOR]

This paper presents the results of a research questionnaire of building occupants in selected commercial and office buildings in Hyderabad. A total of 614 building occupants participated in the study from selected 28 commercial and office buildings. Many researchers have used questionnaire as an effective tool to measure the comfort of building occupants. Hence, teams were formed for conducting the questionnaire survey in different buildings. The occupants were explained the purpose of the study and asked to give their feedback on the form. The data was collected and analyzed to know their level of satisfaction with the building environment. Results show that the participants were mainly young males who spend a considerable time indoors. HVAC system is operational for most part of the year in those buildings. Some occupants have reported health issues like nasal irritation, headache, throat irritation, dry mouth, and drowsiness. These symptoms were related to their health history or seasonal effects besides airconditioning issues. A majority of occupants have expressed their satisfaction with the building environments and all its environmental parameters. However, a small percentage of respondents have expressed dissatisfaction also which could be related to their individual backgrounds, medical issues, workloads, and attitudes. However, cigarette smoking remains an issue in commercial buildings. [ABSTRACT FROM AUTHOR]

Attention to the importance of indoor air quality (IAQ) has increased in recent years. It is a topic that has grabbed the interest of scholars, researchers, and the public. Unfortunately, research shows that many indoor locations such as houses, nurseries, schools and offices have been suffering from unhealthy indoor air. Current literature shows that the most significant indoor air contaminants are CO2, CO, NO2, O3, TVOCs, and particular matter along with thermal conditions such as temperature and humidity. The presence of those contaminants affects human health negatively. While different methods to improve indoor air do exist today, yet there is no one best solution. Green Lean Six Sigma (GLSS) frameworks has been used successfully to tackle the problems related to environmental issues in different fields. Accordingly, this paper tries to address a core question of the possibility of applying GLSS approach to improve indoor air quality within various facilities. The definition of GLSS and an overview of the developed GLSS frameworks and their applications will be presented through a review of the relevant articles available in the literature. The findings will highlight possible challenges and featured strong promising research opportunities regarding the use of GLSS approach to improve indoor air quality. The major finding is that there is a lack of implementation of GLSS in different fields and exploring new fields will most probably show positive feedback. [ABSTRACT FROM AUTHOR]

People are aware that outdoor air pollution is harmful to their health, but indoor air pollution can also cause serious health complications. This study aims to determine the indoor air quality of modernized jeepneys to identify the best solutions to eliminate harmful emissions and provide comfort and good health for the occupants. The researchers conducted an IAQ assessment, including the following concentrations: carbon dioxide, carbon monoxide, PM10, PM2.5, formaldehyde, temperature, and relative humidity. In addition, a correlation of the parameters with the number of passengers and the cycle of opening-closing of the door were identified. A survey was conducted to explain the sampling results further. Based on the results, PM2.5 and PM10 were the only contaminants that appeared to be within the standards. Temperature and carbon dioxide both have a relationship with the number of passengers. Carbon dioxide and PM2.5 both have a relationship with the cycle of opening-closing of the door. The rest of the results and recommendations drawn based on these results are discussed in the latter part of this paper. [ABSTRACT FROM AUTHOR]

Grocery stores are primary establishments where people purchase food, supplies, and household items. Most stores are open daily, and some even for 24 hours. Customers enter Rodamel Grocery Store in Tuguegarao City, Cagayan, during the operating hours to buy goods. To ensure public health safety, there is a need to measure/analyze the IAQ of the Rodamel Grocery Store and compare the gathered data to existing IAQ standards. For three consecutive days, air quality monitoring devices were used to measure the ventilation, temperature, humidity, also the concentrations of CO2, formaldehyde, and particulate matter such as PM2.5 and PM10. Bioaerosol samples were also collected and grown using a process called Growth Culture Analysis to qualitatively identify how much is inhaled depending on the grocery shopper’s exposure time. Based on the results, only the temperature and the humidity did not meet the acceptable ranges from the standards, exceeding the maximum of 27 ̊C and 60 respectively. For the bioaerosol sampling, all the 18 samples show a relationship that the longer the shopper stays inside the grocery store, the more bioaerosol exposure is experienced. Further recommendations are also given to the Rodamel Grocery Store to address their indoor air issues. [ABSTRACT FROM AUTHOR]

The Internet of Things (IoT) provides a platform that allows devices to connect, discover and remotely control through the internet. This work aims to develop an Internet of Things-based system for an oil company's laboratory. It is intended to monitor its environmental conditions and parameters through air quality sensors, thus providing intelligent monitoring and greater certainty of working conditions. The system development utilizes ESP8266, Arduino UNO processor, solid-state relay, and sensors. The proposed work monitors the air quality, humidity, and temperature of the laboratory environment. It included an active air exhaust control system. A database has been created with the purpose of data analysis and access to status history. As a result of this system implementation, it is expected to improve laboratory management and occupational health and hygiene. [ABSTRACT FROM AUTHOR]