Air filters ineffective against smoke

Research studies on wood smoke and other air pollution.

Air filters ineffective against smoke

Postby Wilberforce » Wed Jan 14, 2015 8:10 pm

The impact of commonly used air filters in eliminating the exposure to secondhand smoke constituents
Chris A. Pritsos and Thivanka Muthumalage ... ivAbstract

Exposure to secondhand tobacco smoke (SHS) also known as environmental tobacco smoke (ETS) has been well established scientifically as a human health hazard. Despite this and warnings from health agencies, concerns over the economic impact of smoke-free bans have limited political resolve to enact these regulations. Arguments against smoke-free bans include the contention that air filters can eliminate the health risks from SHS exposure. In this study, we assessed the effectiveness of air filters (MERV 4 and MERV 8) commonly used in homes and businesses in reducing the concentrations of total suspended particulates, fine particles and carbon monoxide from SHS as a measure of their potential to reduce the toxicity associated with SHS exposure. Our results demonstrate that these filters are not effective at reducing carbon monoxide levels or PM 2.5, which have been correlated with human health toxicity/disease. Thus, our findings, from a public health perspective, do not support the use of common air filters as a viable alternative to smoke-free bans.
• The Surgeon General has determined that there is no safe level of exposure to ambient smoke!

• If you smell even a subtle odor of smoke, you are being exposed to poisonous and carcinogenic chemical compounds!

• Even a brief exposure to smoke raises blood pressure, (no matter what your state of health) and can cause blood clotting, stroke, or heart attack in vulnerable people. Even children experience elevated blood pressure when exposed to smoke!

• Since smoke drastically weakens the lungs' immune system, avoiding smoke is one of the best ways to prevent colds, flu, bronchitis, or risk of an even more serious respiratory illness, such as pneumonia or tuberculosis! Does your child have the flu? Chances are they have been exposed to ambient smoke!
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