In order to effectively absorb harmful indoor gases, the first flower that should be planted in the new house is the hanging orchid. Hanging orchids are known as the “purifier” in the living room, with a strong ability to absorb formaldehyde. Aloe vera is a natural green plant to beautify and purify the environment, not only to release oxygen during the day, but also to absorb carbon dioxide in the room at night. Under the condition of 24-hour lighting, it can eliminate formaldehyde contained in the air. Agave, tiger tail orchid (tiger lily) and other flowers, can absorb more than 80% of a variety of indoor harmful gases, formaldehyde also has a strong absorption capacity. Cactus, cactus ball (such as golden amber) and other flowers, can absorb formaldehyde, ether and other toxic and harmful gases generated by the decoration, but also to absorb computer radiation. Iron tree is the master of absorbing indoor benzene pollution, and can effectively decompose the presence of carpets, insulation, plywood in formaldehyde and hidden in the wallpaper harmful to the kidneys xylene. In addition, the moon and rose can absorb more harmful gases such as hydrogen sulfide, hydrogen fluoride, phenol and ether. Daisy and Vanda can effectively remove the pollution of trifluoroethylene. Chrysanthemum has the ability to absorb benzene and xylene to reduce benzene pollution. Indoor flowers should be selected according to the actual needs of the species, should generally follow the principle of not releasing harmful substances, easy to maintain, the fragrance and calm, the number of appropriate. But he reminded, although flowers have a better air purification effect, but the best way to purify the air is to strengthen ventilation, update the indoor air.