Run it while someone is smoking and keep it running for at least 3060 minutes after
For cigarette smoke odors, it has a real limitation: its deodorization filter is a thin carbon-impregnated fabric sheet with minimal gas-phase capacity
In the current scientific literature on tobacco heating systems, there are only a few studies in which authors have attempted to address the issues related to radiological exposure
That works out to roughly 24 million adults [estimate, ~9.1% of the ~264M US adult population, label as approximate]
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26-lbs, Impregnated Carbon Filter