As air quality issues become increasingly severe, more and more families are paying attention to the health of indoor air, especially in cities where pollution is serious and ventilation is poor. Indoor air quality has become a significant threat to healthy living. Against this backdrop, residential ventilation systems, as effective devices for improving indoor air quality, are gradually coming into public view. This article will explore the design and installation of residential ventilation systems, helping more families understand how to create a healthy and fresh living environment.

The functions and roles of residential ventilation systems
A residential ventilation system is a type of ventilation system that uses mechanical equipment to introduce fresh air into indoor spaces while expelling stale indoor air. Its main functions include:

1. Providing fresh air: The ventilation system filters harmful substances such as dust from external air, continuously bringing fresh air indoors, thus avoiding oxygen deficiency caused by poor air circulation in enclosed spaces.

2. Removing harmful gases: The ventilation system effectively removes harmful gases like carbon dioxide, formaldehyde, and benzene from indoor air, improving indoor air quality.

3. Dehumidification: The ventilation system effectively expels moisture from indoor spaces, preventing mold growth and maintaining dry air, which helps preserve furniture and walls.

Design Principles for Residential Ventilation Systems

1. Rational Planning of Pipeline Layout

The pipeline layout for residential ventilation systems must be planned based on the structure of the living space to ensure smooth airflow. Different rooms (such as bedrooms, living rooms, kitchens) have varying needs for fresh air, so the airflow distribution should be designed according to the specific conditions of each room. Additionally, the length and direction of the pipelines should minimize excessive bends to reduce air resistance and noise.

2. Designing Airflow

The design of the ventilation system must determine an appropriate airflow based on the total floor area of the residence. Typically, each room's airflow should meet a 0.3-0.5 air change rate per hour, meaning the number of times the air is refreshed every hour. For example, a 40-square-meter room would require a ventilation system with an airflow of approximately 40-60 cubic meters per hour. Moreover, different rooms have different airflow requirements; bedrooms generally need lower airflow, while kitchens and bathrooms require higher airflow.

3. Selecting Suitable Ventilation Equipment

Choose suitable equipment types based on the size, structure, and air circulation needs of the residence. Common types of ventilation systems include single-flow and double-flow systems. Single-flow systems are mainly suitable for small residences or individual rooms, whereas double-flow systems are better suited for larger or multi-room residences because they effectively recover the heat from expelled air, offering better energy efficiency.

4. Noise Control

The noise level of the ventilation system is a crucial consideration in its design. Residential ventilation systems need to ensure smooth airflow while minimizing disruption to residents. Choosing low-noise, silent-design equipment can enhance living comfort.

Installation Points for Residential Ventilation Systems

1. Proper Arrangement of Inlets and Exhausts

During the installation of residential ventilation systems, the arrangement of inlets and exhausts is critical. Inlets should be placed near windows to maximize the intake of external fresh air while preventing the entry of harmful gases and dust. Exhausts should be positioned near sources of air pollution, such as kitchens and bathrooms, to effectively expel indoor stale air.

2. Installation of Pipelines

The pipelines of ventilation systems typically need to be concealed within ceilings or walls, so their layout must be carefully planned during design. The installation should avoid excessively long and overly curved pipelines to reduce air resistance and noise. Additionally, durable and corrosion-resistant materials, like PVC pipes, should be chosen for the pipelines to ensure long-term stability.

3. Selection of Equipment Installation Locations

Ventilation system equipment is usually installed in balconies, corners of balcony walls, or storage rooms, which do not affect the living environment. During installation, ensure there is sufficient ventilation space around the equipment for future maintenance and cleaning.

4. Arrangement of Power Supply and Control Systems

A stable power supply is essential for ventilation systems, so power outlets should be placed near the equipment. Modern ventilation systems often come with smart control panels that automatically adjust airflow based on indoor air quality to maintain good air quality. The installation of the smart control system should ensure ease of operation, and the sensors should accurately detect indoor air conditions.

5. Regular Cleaning and Maintenance

The filters of the ventilation system need regular cleaning and replacement to maintain their efficient air purification function. Additionally, the system"