ONE Air Leak Detection Hazer Hard Field Kit with Extra Fluid - Handheld Smoke Stick Draft Detector Machine with Fog Juice for Detecting Leaks, Puffer Tool for HVAC Techs Energy Raters

Produces a lot of directed smoke, used it to find my draft and it worked like a charm.

It provides smoke which determined proper draft. Inexpensive option.

Button breaks easy

great idea once I see it, reading The details on Amazon, I wanted one. my pros, Promt delivery , good storage case. my cons are once you open the oil bottle it’ll leak it’s doesn’t seal, the volume of smoke isn’t good enough to fellow an air leak I find it hard to use the light , so ill chalk this one as it’ll sit on the back shelf as junk

Highly functional and adaptable for teaching and investigative work