Why does the smell in the bathroom smell so bad when it is rainy or very humid?

This is because the atmospheric pressure is low on cloudy days or rainy days, and the ground air diffusion speed is slow, which makes it difficult to diffuse the odor in the bathroom. \ r \ The bathroom is originally a humid environment, and the air is dry on rainy days, and the humid air in the bathroom evaporates or neutralizes the air in other rooms. \ r \ nIf the air is humid in rainy days and the humid environment is not relieved, it will feel particularly humid and even smelly. \ r \ Option 1: More ventilation can neutralize some humid air; \ r \ Option 2: Use less water, especially for bathing and washing clothes in the bathroom; \ r \ Option 3: Use small sun, electric heater and other drying heat energy to dry; \r\nIf it is the smell from the sewer, you can try the following methods: \r\n 1. Use plastic wrap, find a bottle cap or something like that, or find a bottle with the right size to cut a ring, which is just big enough to cover the sewer mouth exposed by the floor drain. \r\n2。 Wrap some plastic wrap around the ring, make the plastic wrap into a tube and fix one end of the ring. Then put the ring wrapped with plastic wrap on the sewer pipe to ensure that it will not be washed down by water, so that the size of the ring should be appropriate, and then throw the pipe formed by plastic wrap into the sewer pipe, so that the water can pass normally when flushing. \r\n3. When water is not used, the plastic wrap will automatically stick together to form a closed state, and the smell will not come at all. Pipes under washbasins and kitchen sinks are easier to handle. Pull up the hose leading to the sewer pipe, directly wrap several layers of plastic wrap on the pipe end, and then plug it into the sewer pipe. Toilets generally don't smell. If they smell, just drop 84 points into them.