Please recommend a plant that purifies the air.

Category I: Cactus and Cactus.

Cultivation: 1 Potted cactus is generally used for family cultivation. 6 parts humus soil, 4 parts sand and 2 parts sugar ash were used as cultivation soil. It's best to add a little bone powder and mix it evenly before planting.

Cactus begin to grow in spring and summer, and the fertilizer should be applied 1 times every half month, and it is best to apply nitrogen, phosphorus and potassium mixed fertilizer. In addition, it is necessary to properly shade the sun and not to be exposed to the scorching sun.

Potted cactus should be moved indoors in winter, and the room temperature above 5℃ can safely overwinter. At this time, the family potted cactus can be placed in an indoor glass jar to keep warm for the winter, or it can be wrapped in a double plastic bag to keep warm for the winter. In winter, cactus is in dormancy, so the soil in the basin should be relatively dry, otherwise it is easy to rot the roots.

Function 1. Environmental protection function of cactus (cactus-anti-radiation)

In life and work, planting a cactus can absorb electromagnetic radiation. The breathing hole of cactus is opened at night, which can absorb carbon dioxide and release a lot of oxygen at the same time. Placing this plant next to electrical appliances at home or office can effectively reduce the electromagnetic radiation pollution caused by various electrical and electronic products and increase the concentration of negative ions in indoor air. Therefore, placing this plant next to electrical appliances at home or office can help the human body to minimize the radiation released by computers. There is also a saying in Feng Shui that placing large potted plants with sharp leaves on the balcony can avoid misfortune.

2. cactus-natural oxygen bar

Most plants carry out photosynthesis during the day, absorbing carbon dioxide and releasing oxygen; Breathe in oxygen at night and release carbon dioxide. On the other hand, some plants release carbon dioxide during the day, absorb carbon dioxide and release oxygen at night. In this way, if you put cactus indoors at night, you can supplement oxygen, which is beneficial to sleep. Don't underestimate cactus, people are still masters of dust adsorption! Placing a cactus indoors, especially hydroponic cactus (because hydroponic cactus is cleaner and more environmentally friendly), can purify the air.

The second category:

If you are afraid of indoor cactus and ball games, use vines to hang them, such as chlorophytum, green radish and air pineapple.

Among them, the introduction of air pineapple is:

Air pineapple has a strong function of absorbing harmful gases such as formaldehyde and benzene, and can "swallow" 96% of carbon monoxide, 86% of formaldehyde and nitrogen peroxide indoors. It is considered as the most effective "biological purifier". The stomata on the back of air pineapple leaves are closed during the day, and at night, when the ambient temperature drops to a suitable temperature, the stomata open to absorb CO2. Plants with this special metabolic pathway are called CAM plants for short. CAM plants absorb CO2 at night, which can effectively reduce the concentration of CO2 in local environment, so we can use this feature to create a green oxygen bar in the living room.

The easiest plant to grow on the earth is planted in a pot without pot or soil, watered and fertilized every day, without peculiar smell, and can repel insects in summer. The most suitable plant for busy urbanites, the lazy flower that doesn't need time to take care of, is its alternative plant-air pineapple, which has become the first choice of "lazy flower". Some people hang it in the bathroom to remove the odor, some people buy it back and put it in the newly renovated room to absorb formaldehyde, and some people weave curtains to shade the sun.

The third category:

Refers to ordinary plants, which have the effect of evolving air, but how much they have evolved. Even if they really have no effect, they can reduce dust and soften building walls.

Having said that, most plants breathe out oxygen during the day and release carbon dioxide at night. Raising too much is not good for people's lives. But in the past few years, Hu Jin's newly planted plants have breathed out carbon dioxide during the day and at night, which is very beneficial to people. Moreover, Jinhu is a succulent pulp with the strongest absorption of computer radiation, which can release negative ions and oxygen at night.

Finally, the interviewees suggested three plants: Hu Jin, Chlorophyte and Green radish.