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A 42-year-old member asked:

How harmful is one hour of exposure to second hand smoke?

2 doctor answers4 doctors weighed in
Dr. Gurmukh Singh
Pathology 49 years experience
Difficult to measure: Exposure to second hand smoke can trigger heart attack in susceptible individuals. How harmful, is difficult to state, as most people do not suffer long term consequences from a single short exposure.
Dr. Gregg Albers
Addiction Medicine 41 years experience
One hour?: Minimal. The more you are exposed, the more chance for infections.

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A 47-year-old member asked:

How much exposure to second-hand smoke can one have before it causes effects?

1 doctor answer2 doctors weighed in
Dr. Robert Greer
Family Medicine 44 years experience
None: All exposure to smoke is harmful.
A 42-year-old member asked:

Can someone tell me if second hand smoke harmful to my child if I do it only for one day?

2 doctor answers2 doctors weighed in
Dr. Alan Wartenberg
A Verified Doctoranswered
A US doctor answeredLearn more
Smoke somewhere else: Smoking where a child can breathe in second-hand smoke is not healthy for that child, even once. Certainly, long-term exposure is very unhealthy, with increased colds, sinus infections, asthma and allergy, but even short exposures can cause coughing and allergic reactions. If you are not dependent on tobacco, why are you doing this, even for a day? If you must, do it outside.
A 40-year-old member asked:

Please help docs! is second hand smoke harmful to my child if only for one day?

2 doctor answers2 doctors weighed in
Dr. James Ferguson
Pediatrics 46 years experience
To some degree: A study years ago showed break down products of nicotine in the urine of 2 week old babies with no known exposure to smokers. This shows the persistence of smoker derived irritant particles that end up in babies nose. It is surely of no health benefit, but chance exposure to minor levels are part of life.

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Last updated Oct 26, 2012

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