Abstract: An air deflection system and method which is specifically designed for use with reciprocating saws of the type widely used for construction projects. Such reciprocating saws are known to produce so much air-borne particulate matter that they can be a hazard to the eyes, head and respiratory system of the user. The air-borne debris also makes it difficult for the user to see the work being cut. The design provides a slip-on cover for air exit ports which has the effect of deflecting air and hence the particulate matter in a direction away from the head of the user. The resulting effect is a safer and more efficient sawing operation which is accomplished with a low-cost and easy to install deflection shield.