DUST AND ALLERGEN CONTROL FOR SURFACE CLEANING APPARATUS
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United States of America Patent
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Issued Date -
Jun 22, 2023
app pub date -
Feb 14, 2023
filing date -
Feb 14, 2023
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Abstract
A surface cleaning apparatus comprises an air flow path extending from a dirty air inlet to a clean air outlet with an air treatment member positioned in the air flow path. The air treatment member comprises a dirt collection region which has an openable door. A pre-motor filter is positioned downstream of the chamber and upstream of the suction motor and a suction motor is provided in the air flow path downstream of the chamber. The air flow path comprises a downstream portion extending from the pre-motor filter to the suction motor, and, during an emptying mode of operation, the openable door is opened and the downstream portion of the air flow path is closed.
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