Air filtering system as well as control method and control device thereof

The invention provides an air filtering system as well as a control method and a control device thereof, and relates to the technical field of air filtering. The control method of the air filtering system is applied to the air filtering system. The air filtering system comprises a particle monitoring device and a fan filtering device. The control method of the air filtering system comprises the following steps: particle information sent by the particle monitoring device is received, wherein the particle information contains the quantity of particles, with particle sizes in a preset range, detected by the particle monitoring device at the current moment; the control quantity is determined on the basis of the particle information; the rotating speed of the fan filtering device is adjusted on the basis of the control quantity. 本公开提供种空气过滤系统、空气过滤系统的控制方法及空气过滤系统的控制装置，涉及空气过滤技术领域。该空气过滤系统的控制方法，用于空气过滤系统，该空气过滤系统包括粒子监测装置和风机过滤装置。本公开的空气过滤系统的控制方法包括：接收粒子监测装置发送的粒子信息，粒子信息包括粒子监测装置在当前时刻检测到的粒径在预设范围内的粒子的数量；根据粒子信息确定控制量；根据控制量调节风机过滤装置