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The tradeoff: lower sweetness and substantially less cooling than RAZ or Flum

N95 masks provide the greatest risk reduction, but a good cloth mask with a center filtering layer does still reduce risk substantially. That said, according to Ronaghi, smoke particles are one-30th the size of a single strand of hair and can easily slip through the gaps of a fabric face mask

The law is expected to pass with broad bipartisan support when it is formally introduced in July, and it would go into effect at the start of next year, with a six-month transition period

Although indirect estimation may introduce some variability due to differences in litter composition and methodologies, we ensured consistency by only including studies that provided sufficient detail to reliably calculate cigarette butt densities