Don't do what I did last Sat afternoon..I clicked it on...and tens of mosquitoes were everywhere.. I heard the gas running and presumed it was on...[X(][&:][:@]After 40 minutes...[&:],,,I remembered the directions saidto check the little round window to make sure it was buring...it wasn't...I clicked it again...she lit..and the mosqitoes left..[8D]Live and learn.

I love my Thermo Cell.....I have asthma and have attacks around perfumes , etc...BUT I was totally fine with the Therma Cell...kind of expensive but if you live in Florida..it's a must.