What are the reasons for the humidity?

From February to March every year, the weather gradually turns from cold to warm, which is a frequent period of resurgence weather. During this period, the problems that bothered us came: the air was sultry, the house was humid, and the floor, walls, ceiling, doors, closets, glass tea and so on were all water. After a day's washing, clothes can still be screwed into the water, and clothes and quilts will feel wet. What should we do in the face of this resurgence weather? Take a look at the reasons why Bian Xiao carefully arranged for you to get wet. Due to the influence of strong cold air during the Spring Festival in China, especially this year, the temperature in the south is wide and low, which lasts for a long time and is extremely cold. Results The indoor temperature dropped, and the ceramic tile wall was cool. Now the warm and humid airflow is strong and the water vapor is sufficient. When encountering cold ground and walls, water vapor can easily condense into water droplets and gradually accumulate. The typical phenomenon of returning to Nantian in the north is sweating on the wall, bubbling on the ground, fogging in the mirror, and clothes are rarely dry. If you feel cold, please close all doors and windows immediately, and try not to turn on the exhaust fan except cooking, otherwise the humid air outside will be sucked into the room. 2. Use dehumidification device or refrigeration device for dehumidification. If the moisture regain is too strong, it is recommended to use a dehumidifier, and the effect will be better. Especially when the air conditioner is turned on to promote dehumidification, remember to close the doors and windows. 3. Use desiccant to absorb water and dehumidify. Commonly used household moisture absorbents include quicklime, charcoal, activated carbon, etc. Especially quicklime, has good water absorption effect and strong water absorption. The disadvantage is that calcium hydroxide (ca)2 becomes mature after absorbing water and cannot be reused. The moisture absorption effect of charcoal is far less than that of quicklime, but it can be reused after drying. In addition, the desiccant with slightly higher cost includes silica gel, calcium chloride, alumina gel, molecular sieve, phosphorus pentoxide and so on. Usage: Wrap it in newspaper, and put desiccant around the room or under the bed when the weather gets warmer. If a small amount of sand is mixed, the permeability of desiccant can be increased, the permeability of desiccant can be increased and the moisture absorption effect can be improved. 4. Place desiccant near the wardrobe, electrical appliances or valuables to keep clothes dry and prevent electrical appliances from short-circuiting due to humidity. Don't panic if you find that the weather is back and the TV can't see the picture. Turn on the TV for 50 minutes and it will return to normal. 5. After the floor of a room is wet, it is generally difficult to completely dehumidify. Newspapers, discarded books, etc. Can be laid on the ground, which can not only absorb water and dehumidify, but also prevent slippery.