Summer is a relatively good season for asthma patients, but there are also triggers such as high humidity and improper use of air conditioners, so asthma patients should also be careful. The hot summer months are humid and rainy, with low air pressure and a warm, humid environment that tends to breed mold. Some molds can release thousands of extremely tiny spores, causing respiratory mucous membrane allergies and triggering itchy respiratory tract or asthma. Monitor the temperature and humidity in the house, use air conditioning to keep the room temperature 25 degrees to 27 degrees, humidity 40% to 50%. Often wipe the kitchen, bathroom and other humid environments with a diluted bleach solution, wipe for 5 minutes, then wipe with water to keep the kitchen and bathroom dry. To often keep the indoor air circulation. Mold belongs to the plant, but no roots and leaves, can only live a parasitic or saprophytic life, sexual and asexual reproduction, can produce spores and mycelium. Mold is an inhalation antigen, and can cause allergic reactions to people with allergies. Mold is easy to breed in wet and rainy and near the sea, in a suitable temperature, a certain humidity environment, mold significantly increased, so in the summer or rainy season, mold caused by allergies will increase, but its seasonality is not as clear as pollen. Do not put too many flowers and plants in the house, not to potted plants too much water, because the wet soil is the perfect environment for mold growth. Room air to keep fresh, circulation: room attention to regular ventilation, ventilation at least 2 times a day, each according to the seasonal climate ventilation 10 ~ 30 minutes. Families with conditions can be equipped with hygrometers, dehumidifiers, indoor dehumidification in the weather of excessive humidity. These two common devices are available online and are not expensive. In the hot days of summer, the use of air conditioning must also pay more attention to the air conditioner can be considered to cause indoor and outdoor temperature differences, which can cause local respiratory tract local immunity, some inhaled cold air to become allergens, stimulating bronchial coughing and wheezing. So even if you want to turn on the air conditioning, but also to keep the temperature difference between indoor and outdoor less than 5 degrees. It should be noted that the air conditioner must be cleaned before using the filter. One more sentence, room-related content, asthma patients should not have gas, smoke, paint and other irritating odors in the room. It is best to live far away from roads, chemical plants and gas stoves. The range hood in the kitchen must be powerful, and the hood must be on when firing, with or without burning vegetables. Natural gas generally has hydrogen sulfide, carbon dioxide, nitrogen and water gas and a small amount of carbon monoxide and trace amounts of rare gases such as helium and argon. Before natural gas is sent to the end user, to help with leak detection, thiol and tetrahydrothiophene are also used to add odor to the gas. These impurity gases cause spasms and obstructive symptoms in the airways of asthmatics.