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Do air purifiers make sense in a house with open windows?


We keep our windows open for ventilation during the day, but I want an air purifier for the bedroom at night. Would a Xiaomi Smart Air Purifier 4 Lite still be useful, or does an open-window setup make it ineffective?
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1 Replies
Rahul Dhingra
Rahul Dhingra
1 day ago
It can still help in a closed bedroom, but keeping windows open while it runs makes it harder to maintain cleaner indoor air.
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