It was considered a specialty item until 1954, when manufacturers introduced the machine more broadly, following a spate of announcements from doctors and researchers concerning a possible link between lung diseases and smoking
According to the EPA, HEPA filters can reduce smoke particle concentrations by as much as 85 percent
It is important to note that "TSA security officers do not search for marijuana or other illegal drugs, but if any illegal substance is discovered during security screening, TSA will refer the matter to a law enforcement officer." That means TSA is not actively seeking out your THC oils
Beyond the upfront cost, budget approximately $50 to $150 per year for replacement filters, depending on the model and how often the unit runs
This finding is consistent with previous studies that have reported a general reduction in smoking at the community level following the implementation of smoking prohibition in public places [46, 47]