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A 25-year-old female asked:

Does airing the room for 20 minutes at night before closing all windows and doors help decrease indoor air pollution the same amount as having the windows open all night?

1 doctor answer1 doctor weighed in
Dr. James Ferguson
Pediatrics 48 years experience
Probably not. Adding a fan to increase airflow during the process could add its effectiveness. Either way it may be effective enough to accomplish your goal of decreasing indoor particulate pollution.
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Last updated Jun 23, 2022


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