| 摘要 |
A vacuum cleaner accessory that is used in cleaning heat exchanger units for heating and cooling machinery, wherein the invention comprises of a wand-like body forming an interior that is continuously connected at a rear open end with a vacuum source and at a front open end has an aperture which allows the interior of the device to meet the exterior environment. The unattached front open end has at least one prong-like extension upon which a brush is movably attached and is held in close proximity to said aperture. In operation, the vacuum source is applied to the device and the brush of the device is applied to and rolled over the surface of the heat exchange unit to cleaned. The rolling action of the brush agitates and removes particulate matter that has settled upon and coated the surface of the heat exchanger unit. As the particulate matter is removed from the surface of the heat exchanger by the brush, the air being drawn into the aperture by means of the applied vacuum, brings with it the removed particulate matter and alike into the interior of the device and removes the particulate matter and alike to area of containment remote from the heat exchanger until such time that said waste matter is properly disposed of by the operator.
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