An article comprising a can and a dispensing device wherein the can has opposing top and bottom ends with a valve stem extending out from the top end and wherein the dispensing device comprises: (a) a cap attached to the can and that fits over the top end of the can and covers the valve stem where the cap has defined therein an access slot that provides access to the valve stem; (b) a hollow tube having opposing entrance and exit ends and that defines a hollow tube flow channel extending through the hollow tube including the entrance end and one or more than one hole proximate to the exit end, the entrance end of the hollow tube being removably attached to the valve stem of the can so that there is fluid communication through the valve stem into the flow channel and the hollow tube extending through the access slot in the cap; (c) a sleeve extending over a portion of the hollow tube, the sleeve having a lower end and an opposing dispensing end that is proximate to the exit end of the hollow tube where the sleeve defines a hole proximate to the dispensing end and the sleeve is capable of reversibly sliding over the hollow tube; (d) a lever that has a sleeve end and an opposing trigger end that is hingedly attached to the cap between the sleeve and trigger ends, where the sleeve end is operatively engaged with the sleeve so as to cause the sleeve to move towards the exit end of the hollow tube and tilt the valve stem of the can when the trigger end of the lever is displaced towards the can and where the trigger end extends along at least a portion of the length of the can; (e) an elastic feature that provides a force, or causes a force to be applied, to the sleeve when the sleeve is moved towards the exit end of the hollow tube, the force being in a direction that tries to move the sleeve towards the entrance end of the hollow tube; and (f) a sealing gasket around the outside of the hollow tube between the hollow tube and the sleeve and located between the exit and entrance ends of the hollow tube, the sealing gasket preventing fluid communication past the sealing gasket between the hollow tube and sleeve; wherein, when the sleeve is in the closed position the sleeve seals the hole proximate to the exit end of the hollow tube so as to preclude fluid flow out from the flow channel of the hollow tube proximate to the exit end of the hollow tube and the trigger end of the lever extends next to but spaced apart from the can but when the sleeve is in the open position the sleeve is displaced towards the exit end of the hollow tube unsealing the hole proximate to the exit end of the hollow tube thereby allowing fluid flow from the flow channel of the hollow tube through the hole proximate to the exit end of the hollow tube; and wherein with a single action of pressing the lever so as to displace the trigger end of the lever towards the can when the sleeve is in a closed position causes the sleeve to move into an open position and the valve stem to tilt thereby opening the can and with a single action of releasing pressure on the trigger end of the lever the sleeve moves into a closed position sealing the hollow tube and the valve stem returns to a non-tilted position closing the can. (a) a cap attached to the can and that fits over the top end of the can and covers the valve stem where the cap has defined therein an access slot that provides access to the valve stem; (b) a hollow tube having opposing entrance and exit ends and that defines a hollow tube flow channel extending through the hollow tube including the entrance end and one or more than one hole proximate to the exit end, the entrance end of the hollow tube being removably attached to the valve stem of the can so that there is fluid communication through the valve stem into the flow channel and the hollow tube extending through the access slot in the cap; (c) a sleeve extending over a portion of the hollow tube, the sleeve having a lower end and an opposing dispensing end that is proximate to the exit end of the hollow tube where the sleeve defines a hole proximate to the dispensing end and the sleeve is capable of reversibly sliding over the hollow tube; (d) a lever that has a sleeve end and an opposing trigger end that is hingedly attached to the cap between the sleeve and trigger ends, where the sleeve end is operatively engaged with the sleeve so as to cause the sleeve to move towards the exit end of the hollow tube and tilt the valve stem of the can when the trigger end of the lever is displaced towards the can and where the trigger end extends along at least a portion of the length of the can; (e) an elastic feature that provides a force, or causes a force to be applied, to the sleeve when the sleeve is moved towards the exit end of the hollow tube, the force being in a direction that tries to move the sleeve towards the entrance end of the hollow tube; and (f) a sealing gasket around the outside of the hollow tube between the hollow tube and the sleeve and located between the exit and entrance ends of the hollow tube, the sealing gasket preventing fluid communication past the sealing gasket between the hollow tube and sleeve;