Hi! My name is Matthew Christian from Tampa, Florida and on behalf of Expert Village, today I would like to talk to you about the proper use and maintenance of a leaf blowers. On most gas powered backpack blowers or gas powered leaf blowers, the throttle is variable. Meaning that it allows you to control the speed at which the blower is blowing. Just pulling the trigger a little bit, it blows just a little bit; pulling the trigger completely provides maximum blowing capacity. So you might be in a situation where you need to blow some leaves off of your driveway but not onto your neighbors driveway. So you just use a little bit of trigger. When you want to get them over on your neighbors driveway, you pull the trigger full speed.