Many households use fresh air systems to ventilate, prevent smog and purify the air, but when choosing a fresh air system, many people may fall into some common pitfalls, resulting in the choice of inappropriate equipment. Next, we will discuss some key details that need to be paid attention to when choosing a fresh air system to help you choose a fresh air system better.
1.The noise problem cannot be ignored.
After the installation of the fresh air system, everyone expects to enjoy the fresh indoor air without being disturbed by outdoor noise. However, if the fresh air system is running too loudly, it will seriously affect your quality of life. Therefore, when choosing a fresh air system, the noise problem must not be ignored. Under normal circumstances, the noise of a high-quality fresh air system should be kept below 30 decibels when operating at low speedsWhen running at high speed, the noise should be controlled within 50 decibels.
2.Moderate fresh air supply volume.
Some people may pay too much attention to the fresh air supply volume when choosing a fresh air system, thinking that the larger the air supply volume, the better. Actually, this is not true.
The air supply volume of the fresh air system should be reasonably selected according to the area and number of people used, and should not be too much or too little. For example, in a 60-square-meter office, choosing a fresh air system with an air supply volume of 500 mm h will be too large, resulting in waste of electricity bills and filters, and at the same time, the noise may also be too large, affecting the user experience. In particular, it should be noted that the choice of air supply volume of wall-mounted fresh air fan needs to be extremely careful, even if the air volume is large, it can only meet the ventilation needs of a single room.
3.Selection of heat exchangers.
When purchasing a fresh air system, some buyers expect the equipment to have a heat exchange function to achieve the purpose of not being hot in summer and not cold in winter, and can also save electricity bills. However, the heat exchange effect has a lot to do with the volume of the heat exchanger, and the heat exchanger with a large enough volume can function better.
If you are looking for heat exchange and energy saving, it is recommended to choose a ceiling-mounted fresh air system with a large volume of heat exchanger core, which can better meet the temperature needs of seasonal changes.
4.The fresh air system cannot filter formaldehyde.
In newly renovated homes, if formaldehyde exceeds the standard, many people choose to install a fresh air system to remove formaldehyde. To be clear, the fresh air system does not remove formaldehyde through an activated carbon filter.
The fresh air system can indeed reduce the indoor formaldehyde concentration by continuously introducing fresh air and expelling the indoor dirty air to dilute the formaldehyde gas. This principle is similar to when we open the windows for ventilation before moving in, but the advantage of a fresh air system is that it can be ventilated 24 hours a day and avoid outside pollutants entering the room.
To sum up, when choosing a fresh air system, the details determine the performance and actual effect of the equipment. By focusing on noise, proper air flow, heat exchanger volume, and formaldehyde treatment principles, you can make a more informed choice of the right fresh air system for your needs and ensure that your indoor air quality is at the ideal level. Hopefully, these tips will help you and make you more informed when choosing a fresh air system.