Some research, while not conclusive, appears to bear this out
Typically, HEPA filters should be replaced every six to 12 months, while activated carbon filters may need more frequent replacement
What are the natural causes of wildfires
For example, prior research with the general population of smokers has demonstrated that individuals with a smoking history from communities identifying as Black, Indigenous, and People of Color (BIPOC) in the United States experience a higher prevalence of smoking-related diseases, including cardiovascular disease, cancer, and other chronic conditions [15,16,17,18,19] than the general population
The government did this through creating tobacco allotments