Abstract: There is provided a fit testing method comprising: providing a respirator donned by a wearer; providing a sensor in electrical communication with a sensing element, where the sensor is configured to monitor a particulate concentration parameter of a gas space within the respirator, and a second particulate concentration parameter of a gas space outside the respirator, where the sensor is attached to the respirator such that the respirator such that the weight of the sensor is supported by the respirator; and providing a reader configured to communicate with the sensor, where the reader is configured to provide a respirator fit parameter based on a comparison of the particulate concentration within the respirator to the particulate concentration parameter outside the respirator.

Abstract: An electronic golf based target game in which one or more players use a golf club to hit golf balls towards one or more target zones located on a target. The target zones are assigned a corresponding score earned upon being struck by a golf ball from a respective player. The target is wirelessly in electronic communication with a mobile electronic device which displays a user interface. The target may be folded for ease of transportation and storage.

Abstract: A table tennis table includes a table top and a base assembly. The base assembly includes legs that are adjustably spaced so that the base assembly has an adjustable length and an adjustable width. Each leg includes a telescoping pole that extends between a table pad and a floor pad. One or more struts extend from each leg to adjacent legs along the length and the width of the base assembly. The adjustable legs may be used to configure the base assembly between a collapsed configuration and an expanded configuration which has a greater length and width than the collapsed configuration. When the base assembly is configured in the expanded configuration, the legs of the base assembly may be used to support the table top to create a to playing surface for table tennis.

Abstract: Certain preferred embodiments of the present invention provide an improved light raising and lowering apparatus and method for a basketball goal. In some improved embodiments, an extension arm with a light attaches to an adjustment mechanism and further attaches pivotally to a basketball goal support structure, where the light moves upward when the adjustment mechanism pulls on the extension arm. As a preferred feature, the extension arm rotates to a raised position where the extension arm may be secured without requiring manual adjustments. As another preferred feature, the light raising and lowering apparatus may be attached to a previously assembled basketball goal.