4楼、18楼大胆买，不能买的是这5个楼层，缺点令人难以接受

Core Viewpoint - The article emphasizes the importance of carefully considering floor selection when purchasing a property, highlighting that certain floors may have hidden drawbacks that could affect living conditions and safety [1][20]. Group 1: Advantages of Specific Floors - The 4th floor is seen as a practical choice due to easy access, better views, and quicker emergency escape, while the 18th floor offers advantages like reduced noise, fewer insects, and better lighting [5][3]. Group 2: Floors to Be Cautious About - The article identifies five types of floors that should be approached with caution: 1. Flood-prone Floor (typically the 2nd floor): New buildings may have design flaws that lead to sewage issues, making this floor a potential hazard [10]. 2. Equipment Floor: This floor houses essential machinery, which can generate noise and heat, negatively impacting living comfort and health [12]. 3. Waistline Floor: Aesthetic features can obstruct light and airflow, leading to dark and damp living conditions [14]. 4. Steel Beam Floor (e.g., 3rd, 7th, 10th, 17th floors): Structural issues may arise from construction practices, posing safety risks during seismic events [16]. 5. Obstructed Low Floors (1st to 3rd floors): These floors may suffer from poor lighting and ventilation, increasing the risk of mold and exposure to noise and pollution [18].