There are small flying insects at home, such as beetles, which are reddish brown and fly very slowly. I don't know what bugs are and where they fly out.

According to the characteristics you described, this small flying insect may be a moth or a longicorn. They usually like warm, humid and dark environments and may appear at home. Moth is a small beetle, which usually lives in wood, furniture and buildings. Anoplophora longicorn is a large beetle, which is common outdoors, but sometimes it flies indoors.

These bugs may come from wooden furniture, wooden decorative materials, plants and other places at home. If you want to reduce these small flying insects in your home, you can try to clean and disinfect these places and keep your home dry and ventilated.

Please note that although these insects do not pose a serious health threat to human beings, they may affect the quality of life and hygiene of families. If the problem still exists, it is recommended to seek the help of professional pest control services.