Patent ID: 9347681
Filing Date: 2016-05-24
CPC Classification: F24F

Claim Text:
1. A cleanroom for storing glass substrates, comprising an exhaust disposed on a bottom floor of the cleanroom; a first filtering device arranged on a ceiling of the cleanroom to provide purified airflow to the cleanroom; a second filtering device including a blower and arranged on the bottom floor of the cleanroom to be spaced from and opposite to the first filtering device and to jointly create a vertical airflow with the first filtering device so as to reduce the turbulence within the cleanroom; wherein the first filtering device includes, a preliminary filter used to draw in and purify incoming airflow; an intake having one end interconnected to the preliminary filter; a housing with another end of the intake interconnected thereto; an electrical motor disposed within the housing; a fan coupled to the electrical motor and driving the incoming airflow from the first filtering device in a vertical direction toward the second filtering device to generate the vertical airflow; an airflow regulator arranged under the fan to balance the airflow; a filter disposed under the airflow regulator for filtering the airflow a second time; a metallic protective screen is disposed on a bottom of the housing; at least a mounting leg disposed under the bottom to fixedly attach to the ceiling and the bottom floor; and a controlling unit is used to operate the electrical motor; and wherein the blower of the second filtering device is arranged opposite to the fan of the first filtering device so as to guide and additionally drive the vertical airflow to move in the vertical direction for being discharged directly to the outside of the cleanroom, where the airflow moves directly through the cleanroom in the vertical direction.