We have our windows and doors screened to protect the family's health and prevent insects or anything comes inside the house. Among the dangerous insects of course are cockroach and mosquito. My kids are afraid of them. Aside from the physical appearance, we told them the danger of exposing themselves to it.
Good or bad weather, we sprinkle this Tianshi Insect Killer at home for protection. It is not expensive as Baygon but effective than the later. It can kill mosquito, cockroach, spiders and even ants. In just one spray, the smell of its chemical kills the pest and keeps the family safe. The spray is not harmful, cheaper than the other branded sprays but effective I could say base on the experience. We have been using it for more than two years and the performance is still good.
At first we thought we have to buy it somewhere far but to our surprise even vendors at the market place are selling this item.