Environmental safety judgment method and device and mask

The invention provides an environment safety judgment method and device and a mask. The method comprises the following steps: acquiring environmental parameters measured at a current position; determining the safety coefficient of the current position according to the environmental parameters; and judging whether the safety coefficient meets a preset condition, and when the safety coefficient does not meet the preset condition, judging that the environment of the current position is unsafe. Through the method, whether the environment of the current position is safe or not can be effectively judged, the quality of air breathed by a user in a public place can be guaranteed, the probability that the user is infected by viruses can be reduced, and the health coefficient of the user is improved. 本发明提供一种环境安全性的判断方法、装置以及口罩。该方法包括：获取在当前位置测得的环境参数；根据所述环境参数确定当前位置的安全系数；判断所述安全系数是否满足预设条件，当所述安全系数不满足预设条件时，判定当前位置的环境不安全。通过本发明的方法能够有效判断当前位置的环境是否安全，有利于保障用户在公共场合所呼吸的空气的质量，有利于减少用户被病毒感染的概率，提高用户的健康系数。