The following are effective soundproofing solutions:

• Window Soundproofing
  Glass Selection: Double-pane/triple-pane glass provides sound insulation through a layer of air or inert gas. Different glass thicknesses can enhance this effect. Laminated glass uses an intermediate layer to dampen vibrations and is particularly effective against low-frequency noise (such as traffic and machinery). Laminated glass can be used in combination with the two.
• Window Frames and Sealing: PVC and wooden window frames provide better sound insulation than aluminum. High-quality sealing strips (such as foam rubber or silicone) should be installed and regularly inspected and replaced. Compression sealing can enhance effectiveness.
• Installation Technique: Fill window gaps, ensure proper installation, and seal the perimeter with high-quality sealant.
• Door Soundproofing
  Solid-core Doors: Solid wood or composite doors provide better sound insulation than hollow-core doors, and composite doors offer a more cost-effective solution.
• Insulating Door Panels: Insulating panels made of materials such as foam and fiberglass can be added to existing doors to improve their sound insulation.

Other Considerations

• Combining door and window solutions for optimal results;
  Interior soft furnishings (carpets, curtains, etc.) can absorb sound and improve the indoor acoustic environment;
  Regular maintenance (inspecting and replacing seals, inspecting doors and windows) ensures long-term soundproofing.
  In short, the appropriate use of these solutions can effectively reduce noise and improve the quality of life or work.