In this paper, the commonly used High Efficiency Particulate Air filter (HEPA) material as research object, through design of indoor experiment, using pure water, groundwater, and rainwater solution to soak, analysis unused abandoned mesh in different water chemical release/adsorption law anion metal components, order find out its potential impact on environment. Results showed that: (1) when w...

BACKGROUND Osteoarthritis is one of the leading causes of inactivity worldwide. The recommended level of health enhancing physical activity (HEPA) is at least 150 min of moderate intensity physical activity per week. The purpose of this study was to explore how the proportion of patients, who reached the recommended level of HEPA, changed following a supported osteoarthritis self-management pro...

This is a concept paper of how primary clinic should be managed in the new normal era, facing pandemic Covid-19, but also possible future. We proposed to manage based on several findings regarding epidemiology, virus transmission, and many other best practices reduce contact maintaining service through an online connection. highlighted recommended use for indoor air quality management, which HE...

In this study, we explored the role of health-enhancing physical activity (HEPA; Miilunpalo, 2001) in women's eudaimonic well being (i.e., psychological flourishing at one's maximal potential; Ryff 1989). We used a quantitative approach (N= 349) to explore the relationship between HEPA and eudaimonic well being. While HEPA was not related to eudaimonic well being, experiencing eudaimonia throug...

A novel range hood (NRH) consisting of a high-efficiency particulate air (HEPA) filter circulation component and exhaust was designed to improve indoor quality. The HEPA with an airflow rate 72 l/s used remove the matter generated by cooking activities return filtered clean room. reject both other pollutants outdoors. Field measurements were carried out in open kitchen two-floor residential hou...

Microbial aerosols are known to be created and disseminated in dental operating rooms (DOR's) in quantities sufficient to raise the possibility of cross infection. The purpose of this study was to evaluate the effectiveness of high efficiency particulate air (HEPA) filters in reducing the concentration of airborne microorganisms. Tests were made in DOR's of 1600-, 1800-, and 3240-ft 3 capacity ...

Abstract A set of mono-disperse aerosol generator was designed to meet the requirement efficiency testing for high particle air filter. The generation tests and performance were conducted by using evaporation–condensation method, with NaCl solutions at different concentrations as condensation nucleus respectively DEHS, DOP, PAO–4 reagents. results show that three reagents can generate particles...