First, cactus is not poisonous when placed in the bedroom, but the plant does not perform photosynthesis at night. Instead, it absorbs oxygen and exhales carbon dioxide like humans, which will have a certain impact on human normal breathing; Second, the cactus will indeed absorb some radiation from the TV, but it must be under the condition that the cactus itself is not harmed by the radiation. Therefore, if you want the cactus to absorb radiation, the cactus should be at least one meter away from the TV; third, it is not recommended that the poster places Cactus is placed in the bedroom, firstly, because the cactus breathes oxygen at night, which will affect people's normal breathing; secondly, because the thorns of the cactus are poisonous and very small, and it will be difficult to fall on the floor or stick to socks and shoes. turn up.