The Impact of Four-Stage Air Filtration Systems on the Well-Being of Residents Living in Skilled Nursing Care Facilities

<b>Purpose:</b> A non-randomized exploratory and observational study evaluated the effects of high-performance four-stage air filtration systems on health and well-being of residents in skilled nursing facilities. <b>Background:</b> Air pollution and microorganisms are environmental hazards that can increase stress levels and are associated with increased susceptibility to heart attacks, strokes, and heart failure. Research indicates that filtration devices can lower exposure to fine particulate matter, potentially improving health. <b>Methods:</b> Four-stage air-filtration systems, including a pre-filter for large particulate matter, a patented molecular filtration media, chemical filtration, and a HEPA filter, were installed at two skilled nursing facilities. A facility without any intervention was also considered to provide comparative results. Data from electronic medical records were analyzed to assess changes in vital signs and instances of infection before and after filter installation. The criterion for subject selection was admission at least 6 months before the installation date of the filtration system; residents had diverse medical conditions. Surveys were used to gather staff perspectives on the air filtration systems. <b>Results:</b> Residents in facilities with air-filtration systems showed significant improvements in systolic blood pressure, body temperature, and pulse rate (<i>p</i> < 0.05). Staff reported noticeable odor reduction after filter installation. No such improvements were observed in the facility without air-filtration intervention. <b>Conclusions:</b> Findings suggest that the improved air quality from the four-stage air filtration systems positively impacted residents of skilled nursing care facilities, highlighting the potential benefits of implementing high-performance filtration systems in such settings. Further research is necessary to understand the long-term effects of these interventions.