Hi,
Anything that is vaporised or is particulised then blasted into the atmosphere has the potential to harm your health,Think about it, He's breathing would have more laboured carrying around that back pack sprayer so he would definately have no weeds or bugs in his lung..LOL.
All jokes aside this bloke should be wearing a respirator especially in this day of information about how to deal with the dangers of doing this type of job.
This is one job where monkey see monkey do! Definately does not apply!
