CB 80 is not a total release fogger. It is a handheld "use as needed fogger" which saves time and money. For a typical garage, you only need to spray it about 5 - 10 seconds. Just hold it in the air and press the button to start fogging. Walk backwards as you spray it into the air, then leave through the door. About 5-10 seconds for most pests. Be sure to leave the area for at least 15 minutes. When you come back, just open the garage door and let it air out.