from FOX News https://ift.tt/2YonpjJ
Singing and speaking produce similar numbers of airborne particles, but mass grows with volume, study says
Preliminary data from a new study suggests that when singing and speaking at the quietest volume (approximately 50-60 decibels), neither activity is significantly different to breathing in regards to expelling airborne particles.
from FOX News https://ift.tt/2YonpjJ
from FOX News https://ift.tt/2YonpjJ
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