Generally speaking, small flying insects appearing in the bathroom likely come out of the windows or drains. Therefore, in addition to regular cleaning, we may have to find a way to block the invasion of small flying insects.

First, check the bathroom’s window screen to see whether there is a hole; if so, patch up the screen as soon as possible. As regards the drains, we offer some advice for your reference. First of all, prepare a large bottle of water and cover the plughole with it to prevent the invasion of the bugs. If the caliber of the bottle is not wide enough for the plughole, prepare a bucket containing a large bottle of shampoo or shower cream and place it on the plughole, so that those insects can be prevented in the middle of the night from flying into the bathroom along the pipe.

Or we can adopt a more radical approach. Cover the plughole in the bathroom with a piece of old silk stocking. As its density allows water to flow through and yet blocks the invasion of the insects. Therefore, you may not have to worry about the insect crisis in the bathroom anymore.