Can cacti purify the air? Do cacti protect against radiation?

Can cacti purify the air? Do cacti protect against radiation?Today, the editor will elaborate on the common knowledge of flower cultivation, focusing on the planting of cacti. Can cacti purify the air? Do cacti protect against radiation? The specific contents are as follows:Such articles are mainly written to help flower enthusiasts face the facts about cacti and not be deceived by merchants. Questions like "Can cacti purify the air? Do cacti protect against radiation?" have various answers online. Here, I'll briefly share my views.Can cacti purify the air?I believe they can, but the effect is very weak, almost negligible. The so-called air purification has two aspects: one is absorbing harmful indoor gases, such as formaldehyde, and the other is adsorbing dust. There seems to be no authoritative evidence to prove the absorption of formaldehyde, but adsorbing dust is possible, as it can be seen with the naked eye.There are also claims that keeping a cactus indoors is like having a natural oxygen bar, as cacti release oxygen and absorb carbon dioxide at night. I will not comment on the truth of this, but I want to tell flower enthusiasts that it's not good to have too many plants indoors. One pot for decoration is enough. If you want fresh air, leaving a gap in the window is better than keeping any plant.Do cacti protect against radiation?Professor Yao Yuncong of the Horticulture Department says that cacti can grow in the intense sunlight of the desert and resist the damage from sunlight and ultraviolet rays. However, the "radiant energy" produced by sunlight is different from the radiation emitted by computer screens or other electrical appliances. Radiation is a type of straight-line energy wave, and currently, there is no substance that can make radiation turn corners. The term "absorbing" radiation is clearly inaccurate and should be changed to "resisting."There are no research reports that have demonstrated that cacti have a superior ability to absorb radiation compared to other plants. Therefore, placing a cactus next to a computer to absorb radiation and reduce harm to the body is purely speculative and not scientifically proven. Although placing a cactus in front of a computer cannot resist radiation, the green color can soothe eye fatigue and relax the mind, making it a good way to "nourish the eyes" for those who spend all day straining their eyes and minds in front of a computer.This article provides a comprehensive introduction to whether cacti can purify the air and whether they protect against radiation, hoping to bring some knowledge about green plants to green plant enthusiasts.