All out Flash Guard is better product to compare all out liquid machine product.It is not very effectiveness product for remove mosquito for long time it is just effective for few minute to remove mosquito after burnig all out flash guard.It gives ease for used this product for minute and also very easy to used but one thing also remember it is very hazard or harmfull for child and those who have alargee because when burn it then very high sensitive and powerfull smoke comes out from it.Thank you guys writing my review.