Indoor air quality (IAQ) has a substantial impact on public health. Since the beginning of the COVID-19 pandemic, more employees have worked remotely from home to minimize in-person contacts. This pilot study aims to measure the difference in workplace IAQ before and during the pandemic and its impact on employees’ health. The levels of fine particulate matter (PM_2.5) and total volatile organic chemicals (tVOC) were measured in the employees’ offices before the COVID-19 pandemic and at homes while working from home during the pandemic using Foobot air monitors. The frequencies of six sick building syndrome (SBS) symptoms were evaluated at each period of monitoring. The result showed PM_2.5 levels in households while working from home were significantly higher than in offices while working at the office for all participants (p < 0.05). The PM_2.5 levels in all households exceeded the health-based annual mean standard (12 µg/m³), whereas 90% of offices were in compliance. The tVOC levels were all below the standard (500 µg/m³). We also found a higher frequency of SBS symptoms were observed while working from home as the IAQ was worse at home. This study suggested that working from home might have a detrimental health impact due to poor IAQ and providing interventions to remote employees should be considered.

Indoor air quality (IAQ) is a critical determinant of respiratory health and plays an essential role in asthma management. Exposure to indoor pollutants such as particulate matter (PM_2.5), volatile organic compounds (VOCs), and biological allergens can exacerbate asthma symptoms. This pilot quasi-experimental, one-group pretest–posttest study evaluated the combined effect of high-efficiency particulate air (HEPA) purifiers and tailored asthma education on the IAQ and asthma outcomes of 30 adults diagnosed with asthma. Indoor PM_2.5, total VOCs (tVOC), temperature, and relative humidity were monitored using low-cost air quality monitors across three home locations for 30 days, and participants completed baseline and follow-up assessments of asthma control (ACQ) and quality of life (AQLQ). The intervention reduced PM_2.5 concentrations from 21.32 µg/m³ to 18.19 µg/m³ (p < 0.001), while tVOC levels increased slightly from 237.05 ppb to 251.81 ppb (p = 0.02). The median ACQ scores improved from 1.17 to 0.50 (p < 0.001), the proportion of participants with well-controlled asthma (ACQ ≤ 0.75) rose from 30% to 66.7%, and the median AQLQ scores increased from 5.75 to 6.30 (p < 0.001). Participants in the intervention experienced significantly improved asthma control, quality of life, and indoor PM_2.5 levels, which underscores the significance of integrating environmental and educational strategies in adult asthma management.

Asthma continues to affect millions of adults in the United States, with indoor environmental exposures playing a major role in symptom burden and control. Limited research has examined the combined influence of multiple household and environmental determinants on adult asthma morbidity, particularly in diverse states such as Texas. We analyzed pooled data from 1596 Texas adults with asthma who completed the Asthma Call-Back Survey between 2019 and 2022. Multivariable logistic regression models, adjusted for survey design and demographic covariates, were used to examine associations between household and environmental determinants and four morbidity outcomes: asthma attacks, recent symptoms, sleep difficulty, and limited activity due to asthma. Current smoking, lack of bathroom or kitchen ventilation, and absence of air purifier use were consistently associated with higher odds of morbidity. Protective associations were observed for homes without mold, rodents, or furry pets. Disparities were also evident, with older adults, women, and non-Hispanic Black respondents reporting greater morbidity. These findings highlight the importance of addressing modifiable exposures such as indoor smoking, ventilation, and allergen control within comprehensive asthma management strategies. Targeted interventions that combine environmental modifications with health education may help reduce asthma disparities and improve the quality of life for adults with asthma.