Fan filter and manufacturing method thereof

The invention discloses a fan filter. The fan filter comprises an aluminum frame and a filter core; the aluminum frame comprises an upper frame, a lower frame, a left frame, a right frame, an upper connecting part and a lower connecting part; the lower end of the left frame and the lower end of the right frame are respectively fixedly connected with the lower frame by the lower connecting part; the upper end of the left frame and the upper end of the right frame are respectively fixedly connected with the upper frame by the upper connecting part; the filter core is fixedly arranged in the aluminum frame; sealing cotton is arranged in a manner of surrounding the sidewall of the filter core; the filter core is fixedly arranged in the aluminum frame; the sealing cotton is in contact with the inner side surface of the aluminum frame. The invention also discloses a manufacturing method of the fan filter. The fan filter disclosed by the invention is reasonable and ingenious in structural design; the aluminum frame