Abstract: This invention provides an air curtain apparatus, which are characterized by making the dry and clean airflow and/or de-electrostatic ionized airflow sprayed by the air-spraying heads or air-spraying slit thereof be further accelerated by a funnel structure and flowed vertically toward to a predetermined target, thereby less dry and clean airflow and/or a de-electrostatic ionized airflow are needed to achieve an idea dry and clean and/or de-electrostatic state, and the cost for cleaning or removing static electricity can be highly reduced.

Abstract: The present invention provides an apparatus that comprises multiple cases capable of storing power tool accessories and a carousel. The carousel may comprise support plates with grooves on it and retaining covers. The accessory cases are pivotal with respect to the support plates. Each accessory case can be dismounted when the accessory case pivots to align with the grooves. In accordance with the invention, the use of accessory cases become very convenient. An accessory case can be straightforwardly dismounted from the apparatus and be carried by the user without the need for the whole apparatus to be carried.