Health & Safety Expert
1 year ago
7
Steven Petti with over 45yrs experience
Testified in state of Kentucky, his testimony overturned mask mandates state wide.
Industrial Hygiene: the science and art devoted to anticipation, recognition, evaluation and control of environment factors and stresses that can cause illness or kill you.
No control group = no comparison for a study to show effectiveness
#engineering #exposure #controlgroup #filtter #ventalation #destroy #destruction #dilute #1950 #engineeringcontrol
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