@gemswinc Most don't know that the EPA not long ago was considering banning leaf blowers. You mention pollution guessing your referring to the gas engines. They have a much bigger effect on air quality than just from that. They spew huge amounts of particulate matter into the air some particles are small enough to remain in the air for quite some time. This causes huge reductions in air quality which is why the EPA was considering the ban. Even electric of battery powered leaf blowers are bad.