There are always some small bugs in my bathroom, black, winged, and triangular in outline! begging

Gnats are also known as moth midges, butterfly flies, and gutter flies. It is a common flying insect in toilets, toilets, and toilets. The larvae are mostly internal saprophagous.

or dung-eating, living in rotten wood, rotten grass and soil, some live in sewers, and are commonly found indoors after feathering.

Resolution. 1. Always keep all the floor drains in the toilet with water, and when the water is dry, quickly pour water into the floor drain. In this way, the odor is not only sealed by water, but also the gutter worm does not want to fly out, which is the most environmentally friendly, cost-effective method. Also, don't forget that the washbasin is connected to the sewer pipe, so when the washbasin is not in use, the drain should be covered.

2. If you want to keep the floor drain free of gutter insects for a long time, you can go to the health and epidemic prevention station to buy some low-toxicity insecticides, dilute them with water, open the floor drain, spray wildly for a while, and then cover them. Spray a little insecticide often, and you can be free of gutter worms for a long time.

Normal, caused by dampness in the room. The bathroom is more ventilated, and if it is thoroughly cleaned, it will be gone, and my family has also had it.