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Is it okay to sleep in the car with the air conditioning on?

1 Answers

VanRyder

07/30/25 12:25am

It is not advisable to sleep in the car with the air conditioning on. If the car doors and windows are closed while running the air conditioning, the car becomes a confined space, which can lead to the following hazards when sleeping inside. The reasons for unpleasant odors in car air conditioning are as follows: 1. Accumulation of dust in the indoor filter and copper tubes: After prolonged use, dust can build up inside the indoor filter and copper tubes of the air conditioning system. When this accumulation reaches a certain level, it can produce unpleasant odors, which are then dispersed into the air when the air conditioning is turned on. 2. Moisture inside the indoor unit: After cooling or heating, the indoor unit often retains moisture. If the air conditioning is turned off immediately without a drying or anti-mold function, this moisture remains inside, leading to the growth of mold over time and the natural production of musty odors.

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