What plants should be put in the newly renovated school dormitory?

Plants that can purify the air, such as aloe, chlorophytum, Huwei orchid, Eupatorium odoratum, Phyllostachys pubescens, natural scavengers, etc. The research shows that aloe vera, Eupatorium odoratum and chlorophyllin have strong absorption ability to indoor harmful gas formaldehyde. Cycas evergreen, chrysanthemum, kumquat, pomegranate, mirabilis jalapa, Scutellaria barbata, rose, camellia, Milan, daisy, wintersweet and marigold can absorb harmful gases emitted by household appliances and plastic products. The volatile oils of rose, osmanthus fragrans, violet, jasmine, lemon, rose, carnation, lily of the valley and Lagerstroemia indica have obvious bactericidal effect. Crape myrtle, jasmine, lemon and other plants can kill protobacteria, such as diphtheria and dysentery bacteria, within 5 minutes. The fragrance of jasmine, 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. Hupilan, Huweilan, tequila, palm, dwarf kale, striped kale, Sedum, and cultivated pineapple can purify the air at night. If you put two pots of this plant, such as pineapple, in a room of 10 square meter, you can absorb all the carbon dioxide discharged by a person at night. Cactus, lotus, fairy finger, ruler and epiphyllum can increase negative ions. Turn on the TV or computer indoors, and the negative oxygen ions will decrease rapidly. The stomata on the fleshy stems of these plants are closed during the day and opened at night, which absorbs carbon dioxide and releases oxygen at the same time, increasing the concentration of negative ions in indoor air. Orchids, osmanthus fragrans, wintersweet, cauliflower taro and osmanthus fragrans can absorb suspended particles and smoke in the air. Lilac, jasmine, rose, violet, chrysanthemum, mint, these plants can relax people and help them sleep.