As a powerful tool for improving indoor air quality, the ventilation system is increasingly favored by people. However, many users, while enjoying fresh air, are also troubled by the noise of the ventilation system, especially at night when it's quiet, the whooshing sound of the wind can drive you crazy!

In fact, there are many sources of noise from the ventilation system, such as the sound of the main unit operating, the airflow through vents, and the vibration of the ducts. Among these, **the choice and installation of the ventilation ducts largely determine the noise level of your home's ventilation system. Today, let's talk about how to select the right pipes to create a quiet and comfortable ventilation environment.

I. Pipe Material: The First Step in Noise Reduction

The material of the ventilation duct directly affects the level of noise. Currently, common materials for ventilation ducts include:

**PVC Pipes:** Affordable and easy to install, but have average noise reduction capabilities and tend to attract dust due to static electricity.

**PE Pipes:** Flexible, corrosion-resistant, with better noise reduction than PVC pipes, though they are relatively more expensive.

**Spiral Ducts:** Made from galvanized steel, they offer high strength and durability with significant noise reduction, but installation is complex and costly.

**Composite Soft Pipes:** Made from multiple materials, they provide good noise reduction, insulation, and fire resistance, but are more expensive.

Recommendation: For cost-effectiveness, choose PE pipes; if budget allows and noise sensitivity is a concern, opt for composite soft pipes or spiral ducts.

II. Pipe Diameter: Balancing Airflow and Noise

The size of the pipe diameter directly impacts airflow and noise levels. A smaller diameter increases air resistance, leading to insufficient airflow and higher noise; a larger diameter reduces resistance but raises costs and installation difficulty.

Recommendation: Select an appropriate pipe diameter based on the ventilation system's airflow requirements. Typically, for household systems, main duct diameters should be between 75mm and 110mm.

III. Pipe Routing: Reducing Resistance and Lowering Noise

The design of the pipe routing also affects noise levels. Minimize the number of bends, avoid right-angle turns, and use smooth bends to effectively reduce air resistance and noise.

Recommendation: Keep the pipe route as short and straight as possible, with bend angles greater than 90 degrees. Use Y-shaped tees instead of T-shaped tees where possible.

Four: Pipe Installation: Details Determine Success or Failure

The quality of pipe installation directly affects noise levels and system performance. Pay attention to the following points during installation:

Ensure that pipe connections are tightly sealed to prevent air leaks and noise.

Securely fix the pipes to avoid vibrations that produce noise.

Install mufflers at the connections between pipes and the main unit and vents to further reduce noise.

Recommendation: Hire a professional installation team to ensure installation quality.

Five: Other Noise Reduction Tips

In addition to the above points, you can further reduce the noise of the ventilation system with the following methods:

Choose a low-noise ventilation main unit and install soundproofing cotton around it.

Select an appropriate wind speed to avoid high wind speeds that generate noise.

Summary:

Noise issues in ventilation systems are not insurmountable. By choosing suitable pipe materials, diameters, and routes, and paying attention to installation details, noise can be effectively reduced, creating a quiet and comfortable ventilation environment. I hope this article helps you choose the right ventilation pipes, allowing you to enjoy fresh air while also having a peaceful living space.