Spatial contaminant distribution in large semiopen building areas such as sports arenas, warehouses, atriums, malls and other industrial halls is critical to estimating exposure, health risks and building energy performance. It is considered a challenge to measure experimentally how effectively the ventilation system removes or dilutes the pollutant in a large open space, taking into considerat...

This study was done to investigate the relationship between Indoor Air Quality (IAQ) and prevalence of Sick Building Syndrome (SBS) in two different offices (old and new) in Selangor. Hundred and seventy workers were selected consist of 85 office workers for each building. Questionnaire based on Indoor Air Quality and Work Symptoms Survey, NIOSH, Indoor Environmental Quality Survey, 1991 was us...

Humans spend the majority of their time indoors, where they are potentially exposed to hazardous pollutants. Within this context, over past few years, there has been an upsurge low-cost sensors (LCS) for measurement indoor air pollutants, motivated both by recent technological advances and increased awareness quality (IAQ) its potential negative health impacts. Although not meeting performance ...

Abstract The presented paper deals with the assessment of selected indoor environmental quality (IEQ) factors, specifically parameters thermal comfort and air (IAQ), in two buildings a modern office complex. Both are LEED certified. monitoring IEQ risk factors took place spaces (cell open-space offices) representative all occupied areas under operating conditions. results real measurements IAQ ...

Children under 15 years spend over six hours per day in school buildings and are particularly vulnerable to the effects of poor indoor air quality (IAQ). However long-term monitoring environmental conditions is limited Australian schools. This study evaluates IAQ ten classrooms temperate settings Victoria. Temperature, relative humidity, CO2 concentration, PM2.5 PM10 were monitored a period one...

As people spend 90% of their time indoors, it was necessary to improve indoor environmental quality enhance human productivity. Indoor consists air (IAQ), thermal, visual, and acoustic comfort. However, only a few studies have investigated the combined effects IAQ noise. During after COVID-19 pandemic, portable cleaner is often used in buildings reduce concentration particles air, but also gene...

Since outdoor air pollutants may penetrate into hotels, indoor quality (IAQ) has recently developed as an important criterion for tourists’ decision to choose traveling destinations and business travelers select accommodation. Thus, some hoteliers have raised concerns about the negative effects of emerging issues on guests’ experience are willing invest in improving IAQ. Unlike hotel’s currentl...

The LAHU system has been designed, installed, and commissioned in a large university research building. This paper provides detailed information about the demonstration project, including the specific LAHU system mechanical design, optimal airflow control schedules, and measured LAHU energy and indoor air quality (IAQ) performance. The measured energy and IAQ performance are also compared with ...