I had tried this product but its not that much useful. The effect of the card dissappears in few minutes and again mosquitos back on.the smoke of this effects our nose and will make a little sense of pain in surrounding parts of nose.mostly childrens coughing very much when they get smell of it.it is best for those who had a single room with no windows etc.other products are quit diffrent from this like goodnight liquid it is giving results well not for short time.i never recommend to buy this fast card
