In modern home decoration, fresh air system has gradually become a necessary choice for many families to improve the quality of life. It can not only improve indoor air quality, but also adjust indoor temperature and humidity, reduce energy consumption, especially in areas with poor air quality, the role of fresh air system is more significant. However, the installation and selection of fresh air systems is not a simple matter, and many factors need to be considered. This article will give you some tips on the renovation of fresh air systems to help you make informed decisions during the renovation process.

The type and choice of fresh air system

1. Central fresh air system
The central fresh air system is suitable for large residential areas or entire buildings, and delivers fresh air to various rooms through pipes while discharging dirty air. Its advantage is that it has high ventilation efficiency and can cover the whole house, but the installation is more complex, and the pipeline layout needs to be carried out in the early stage of decoration, which is suitable for new house decoration or large-scale renovation.
Tip: If you have a large home area and are planning renovations, a central fresh air system is a good choice. But be careful to communicate with the designer in advance and reserve pipeline space.
2. Wall-mounted fresh air system
Wall-mounted fresh air system is simple to install, only need to punch holes in the wall, suitable for houses that have been decorated. It has the advantage of high flexibility and can be installed separately in a room, but the ventilation range is limited and usually only applicable to a single room.
Tip: If you are partially remodeling or renting, wall-mounted fresh air systems are an affordable option, especially for small Spaces such as bedrooms or study rooms.
3. Cabinet fresh air system
The cabinet fresh air system is similar to the air conditioning cabinet, can be moved, simple installation, suitable for the renovated house. Its advantage is that it does not need to damage the wall, but occupies a certain indoor space.
Tip: If you have a large space and do not want to carry out complicated installation works, cabinet fresh air system is a compromise option.
The core parameters of fresh air system
1. Air volume
Air volume is an important parameter of the fresh air system, which determines how much fresh air the system can deliver per hour. In general, the greater the air volume, the better the air exchange effect, but the energy consumption will also increase accordingly. According to national standards, the fresh air volume of residential buildings should meet the minimum requirement of 30 cubic meters per person per hour.
Tip: When choosing a fresh air system, you can calculate the required air volume according to the size of the house and the number of residents. For example, a house of 100 m2 usually requires 300 m3 /

2. Filtering effect

The filtration effect is directly related to the air quality improvement ability of the fresh air system. Common fresh air systems are equipped with primary, Medium and High efficiency (HEPA) filters capable of filtering different sizes of particulate matter such as dust, pollen, PM2.5 and even bacteria and viruses.
Tip: If the air quality in your area is poor, it is recommended to choose a fresh air system with a HEPA filter to ensure the cleanliness of the indoor air.
3. Heat exchange efficiency
The heat exchanger is the energy saving core of the fresh air system, which can exchange heat between the inlet air and the exhaust air to reduce the loss of indoor energy. The higher the heat exchange efficiency, the better the energy saving effect.
Tip: When purchasing a fresh air system, you can pay attention to the material and design of the heat exchanger, and choose products with a heat exchange efficiency of more than 70% to achieve better energy saving effects.
Installation precautions
1. Pipeline layout
For the central fresh air system, the layout of pipes is very important. The pipe should be as short as possible to reduce bends to reduce wind resistance and noise. At the same time, the pipe material should be selected environmentally friendly and durable materials, such as PVC or PE pipe.
Tip: In the early stage of decoration, fully communicate with the designer and construction team to ensure that the pipeline layout is reasonable and avoid the trouble caused by later changes.

2. Position of the tuyere

The positions of the air intake and exhaust vents should be properly designed to avoid short circuit (that is, the air intake and exhaust vents are too close to each other, resulting in the direct discharge of fresh air). The air intake should be installed in areas with clean air, such as balconies or gardens; The exhaust should be installed in areas with dirty air, such as kitchens or bathrooms.
Tip: During the installation process, ensure that the distance between the air intake and exhaust is at least 1.5 meters to ensure the air circulation effect.
3. Noise control
The operation of the fresh air system will produce a certain amount of noise, especially in the fan and pipe parts. In order to reduce noise, you can choose a low noise fan and install a silencer in the pipe.
Tip: After the installation is complete, test the operating noise of the system to ensure that it does not affect daily life. If the noise is too large, you can adjust the fan speed or increase noise reduction measures.
Use and maintenance
1. Replace the filter regularly
The service life of the filter is limited, and the filtration effect will decline after a long time of use, and may even become a source of pollution. Therefore, the filter needs to be replaced regularly, the primary filter is recommended to be replaced every 3 months, and the high efficiency filter is recommended to be replaced every 6-12 months.
Tip: When buying a fresh air system, understand the filter replacement cycle and cost, and incorporate it into your daily maintenance schedule.
2. Check the heat exchanger
The heat exchanger is the core component of the fresh air system, which may accumulate dust or frost after a long time of use, affecting the heat exchange efficiency. It is recommended to check the status of the heat exchanger regularly and clean or maintain it if necessary.
Tip: When using the fresh air system in winter, pay attention to observe whether the heat exchanger is frosted and deal with it in time.
 Conclusion
As an important equipment to improve indoor air quality, fresh air system plays an increasingly important role in modern home decoration. Through reasonable selection, scientific installation and regular maintenance, fresh air systems can provide a fresh and healthy air environment for your home. Hopefully, the tips in this article will help you make informed decisions during the renovation process to create a comfortable and healthy living space.