Abstract: A fan unit including a fan blower configured to emit air in a plurality of directions in an airflow plane. The fan unit includes first and second guide surfaces disposed on a first side of the fan blower in the airflow plane to define together with a wall part, a first airflow path leading to a first airflow channel. Third and fourth guide surfaces are disposed on a second, opposite, side of the fan blower in the airflow plane, to define with a wall means a second airflow path leading to a second airflow channel. The guide surfaces may be mounted on separate guide means which are identical to one another.

Abstract: A fan unit including a fan blower configured to emit air in a plurality of directions in an airflow plane. The fan unit includes first and second guide surfaces disposed on a first side of the fan blower in the airflow plane to define together with a wall part, a first airflow path leading to a first airflow channel. Third and fourth guide surfaces are disposed on a second, opposite, side of the fan blower in the airflow plane, to define with a wall means a second airflow path leading to a second airflow channel. The guide surfaces may be mounted on separate guide means which are identical to one another.

Abstract: A fan unit is provided comprising: a fan blower (12) configured to emit air in a plurality of directions in an airflow plane; first and second guide surfaces (27A,27B) disposed on a first side of the fan blower in the airflow plane to define together with a wall part(25A), a first airflow path leading to a first airflow channel, and third and fourth guide surfaces(27C) and (27D) disposed on a second, opposite, side of the fan blower(12)in the airflow plane, to define with a wall means (25B) a second airflow path leading to a second airflow channel, the guide surfaces(27A,27B,27C,27D) being mounted on separate guide means (24A,24B,24C,24D) which are identical to one another.

Abstract: A fan unit is provided comprising:

Abstract: A system of geometric guides and baffles is used for directing and diffusing external air drawn from a fan blower before distributing the flow evenly to the outlet of a fan filter unit. This arrangement not only reduces the turbulence within a fan filter unit but also maintains the particle count of air drawn through the same system. Furthermore, the present invention is implemented in dimensions substantially similar to that of the fan blower. As such, the present invention minimizes noise of a fan filter unit even in confined clean room facility.