San Francisco, CA
A 34-year-old male asked:
Is it good or bad to leave window open at night while sleeping? for lungs, respiratory, allergies..
1 doctor answer • 1 doctor weighed in

Dr. Al Hegabanswered
Allergy and Immunology 42 years experience
Varies: With season, geographic area, pollen sensitivity, so it's judgmental, at any rate, letting fresh air in for some time every dsy won't harm, then control your environment with A/C or other if needed like HEPA filter if needed
Created for people with ongoing healthcare needs but benefits everyone.
2.4k viewsAnswered >2 years ago
Last updated Dec 4, 2015
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