| 摘要 |
A portable air-blowing device comprising a collapsible bulb structure that draws in air through a filter that is removably connected to the bulb and, upon manipulation by squeezing the bulb, expels the filtered air inside the bulb out through a nozzle that can be selectively directed upon a surface or object that the user desires to be cleared of dust. Inlet and outlet valves are part of the bulb structure, regulating the flow of air such that air flows in only one direction, in through the inlet and filter, and out through the outlet and nozzle.
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