Coronavirus, the threats of future pandemics, and severe urban pollution have broadened the demand for PAPR (powered air-purifying respirator). PAPR can be used not only in the healthcare and industrial sectors but also by customers for their everyday needs, including those working in international trade, tourists, regular cross-country travelers, etc. Additionally, users are also increasingly demanding about comfort and convenience, and want to continue to be productive – characteristics not found elsewhere. Thus, manufacturers’ efforts in meeting these demands by enhancing product functions are vital to ensure new customers’ acceptance of the product and increase old customers’ satisfaction.