2. Some flowers with elegant fragrance are also ideal choices. The fragrant oil secreted by flowers contains a variety of bactericidal substances, which are beneficial to human health, can also make people feel calm and happy, and is conducive to promoting sleep. For example, chrysanthemum can cure headaches; Jasmine can reduce the heat in summer and make people feel "cool when it is hot"; Both rose oil and jasmine oil have strong bactericidal ability; Osmanthus fragrans has antiasthmatic, antitussive, anti-inflammatory and antibacterial effects. Geranium geranium oil has sedative effect, can improve sleep and treat neurasthenia; In addition, gardenia, orchids, wintersweet, Milan, narcissus and so on. Are fragrant and pleasant fragrant flowers.
3. If the bedroom space is not large enough and the air is not circulating enough, it is not appropriate to place too many plants. Because plants stop photosynthesis at night and continue to breathe, they have to inhale oxygen and release carbon dioxide like people, thus increasing indoor exhaust gas and reducing fresh air, resulting in a situation of competing with people for oxygen. Some succulents native to tropical arid areas can be raised, and their photosynthesis mode is completely different from that of ordinary plants. They only open their pores at night to absorb carbon dioxide. During the day, the stomata are closed to reduce the loss of water. This kind of plants not only absorb carbon dioxide at night, but also absorb and digest the carbon dioxide produced by themselves during breathing, and do not discharge it to the outside world, thus making the air fresh. There are more than 300 kinds of flowers that can purify the air at night, and the common ones are Hupilan, Huweilan, Tongweilan, Pineapple, Aloe, Sedum (Yushu), Longevity, Palmae and so on.
With the improvement of people's living standards, the requirements for indoor air quality are getting higher and higher. However, due to decoration and other reasons, there are thousands of harmful substances in the indoor environment, among which radon, radioactivity, formaldehyde, benzene, ammonia, PVC, nitrogen oxides and carbon oxides are the most important and common. In addition, the increase in the use of electrical appliances has reduced the number of negative oxygen ions indoors. Planting flowers can not only beautify the environment and enliven the atmosphere, but also purify the air and eliminate indoor harmful substances. But some flowers have negative effects on people, so we should pay attention to them.