According to regulations, residential buildings are divided according to the number of floors: 1-3 floors are low-rise; 4-6 floors are multi-storey; 7-9 floors are mid- and high-rise; and 10 or more floors are high-rise.
Which floor is best to live on depends on how many floors there are on a floor.
If it is a high-rise (10-30 floors), it is best to live on the 6th or 7th floor, or above the 15th floor (if it is within the 20th floor, it will definitely not work);
< p>If it is multi-story, the best floors are the 3rd and 4th floors.Generally, the 1st and 2nd floors are too low, and there are more garbage and mosquitoes on the ground; the 8-14th floor is the noise and dust layer, with the highest noise and the most dust.