It is beneficial to purify the air and can be used as an ornamental crop. But you should put it outside at night, because flowers and plants will produce more carbon dioxide at night. The stomata on succulent stems of succulent plants such as cactus are closed during the day and opened at night, which absorbs carbon dioxide and produces oxygen at the same time, which increases the concentration of negative ions in indoor air. Cactus can usually be placed next to the computer, because there are one or two pots of cactus next to your computer. Can help the human body absorb the radiation released by the computer as little as possible. Because cactus grows in a place with strong sunlight, it has a particularly strong ability to absorb radiation. Plants that can absorb toxic chemicals, such as aloe, chlorophytum, Eupatorium odoratum, Phyllostachys pubescens, etc., are natural scavengers and can remove harmful substances in the air. The research shows that Eupatorium odoratum and chlorophytum can absorb more than 80% of indoor harmful gases, and have strong absorption capacity for formaldehyde. Aloe vera is also an expert in absorbing formaldehyde, which can absorb 90% of formaldehyde contained in 1 m3 air. Harmful substances such as sulfur dioxide, chlorine, ethyl ether, ethylene, carbon monoxide and nitrogen peroxide can be removed efficiently, such as ivy, cycad, chrysanthemum, kumquat, pomegranate, Scutellaria barbata, rose, camellia, Milan, daisy, Chimonanthus praecox and marigold. Its cilia can intercept and absorb particles and smoke floating in the air. Volatile oil produced by fragrant flowers such as rose, osmanthus fragrans, violet, jasmine, lemon, rose, carnation, lily of the valley and crape myrtle. , can kill germs, has a significant bactericidal effect. It can kill protobacteria such as diphtheria and dysentery in 5 minutes. The fragrance of rose, carnation, lily of the valley, violet, rose, osmanthus and other plants has obvious inhibitory effect on the growth and reproduction of mycobacterium tuberculosis, pneumococcus and staphylococcus. The stomata on the succulent stems of succulent plants such as cactus are closed during the day and opened at night, producing oxygen while absorbing carbon dioxide. Increase the concentration of negative ions in indoor air. Plants such as Hupilan, Huweilan, tequila, palm, kale, Sedum, Rooting and pineapple can also purify the air at night. Planting plants such as Parthenocissus tricuspidata, grapes, morning glory, wisteria and roses around the house, so that they can climb along the wall or along the frame to form green trees, which can effectively reduce sunlight radiation. Lilac, jasmine, rose, violet, mint and other plants can make people relax, feel happy, help sleep and improve work efficiency. Put them next to the computer, because cactus has anti-radiation effect. If your computers are in the bedroom, I suggest you put them on the windowsill of your room. If your room doesn't have a windowsill, you can put your cactus between your screen and the host. If there is no computer in your room, I suggest you put them on the windowsill.