KN95 Mask vs N95 Mask – FDA Guidelines Surrounding COVID-19 Pandemic
 Filtering respirator face piece masks are subject to various regulatory standards and compliance guidelines from around the world. These guidelines and standards specify the required physical properties, performance characteristics and functionality necessary for achieving a particular standard within a particular country. During emergency situations such as epidemics and pandemics, health authorities may authorize the use of certain foreign standards of face piece respirators such as N95, KN95, or FFP2 equivalent. This article will seek to identify and describe some of the most commonly available respirator standards around the world as well as provide a summary of the current regulatory framework under the FDA in the United States with respect to the 2019 novel coronavirus and associated COVID-19 pandemic. This...