Instruct: Classify an Amazon review as either positive or negative.
Query: Not very effective

I bought this last year. I use it indoors to catch mosquitos that have gotten in the house. Over the last two years, it has caught about 3 mosquitos. This year, it hasn't caught anything. The fan is not strong enough to really suck mosquitos in and keep them in the trap when the flap is fully open. I would not recommend this product.