In the presence of different standards for PPE products, for example, both N95 and KN95 mask types are similar with the same filtration systems tested by capturing salt particles, but they are produced according to different standards. The N95 standard was developed by National Institute for...

To achieve the United Nations' Sustainable Development Goals (UNSDGs), an ever-growing number of not-for-profit humanitarian organizations promotes the environmental and health product in developing economies. In this context, we study the impact of payment type (including the traditional...