想买高层住宅，该选哪一层？行内人指点：买三不买二不会错！

Core Viewpoint - The article emphasizes the importance of selecting the right floor in high-rise residential buildings, focusing on the principle of "Three Musts and Two Avoids" to enhance living comfort and avoid common pitfalls in property selection [3][11]. Group 1: External Factors in Property Selection - The choice of a residence should consider both internal and external factors, with essential amenities significantly enhancing living convenience [4]. - It is advisable to avoid locations near factories, gas stations, elevated highways, and high-voltage power lines, as these can negatively impact health [4]. Group 2: Floor Selection Principles - The article debunks common myths about floor selection, such as avoiding floors with unlucky numbers and the so-called "dust layer" myth, which lacks scientific basis [6][7]. - The "Three Musts" principle includes: 1. Golden Floors: For those preferring high floors, it is recommended to choose between 1/3 to 2/3 of the total floors for optimal light, ventilation, and views. For a 33-story building, floors 12-22 are considered golden [8]. 2. Special Units: If budget allows, consider ground floors with gardens or top floors with attics, as these unique features can enhance living space despite potential drawbacks [8]. 3. Lower Floors: For families with elderly or young children, selecting lower floors (4-10) is advisable for easier access, especially in case of elevator outages [9]. Group 3: Floors to Avoid - The "Two Avoids" principle includes: 1. Equipment Floors: These floors house operational equipment and can generate noise and vibrations, negatively affecting comfort, especially at night [10]. 2. Waistline Floors: These are decorative floors that can obstruct light and ventilation, and may also suffer from water accumulation, leading to aesthetic and comfort issues [10]. Conclusion - Selecting the right floor is crucial for a comfortable living experience, and adhering to the "Three Musts and Two Avoids" principle can help buyers find their ideal home [11].