Is it necessary to install a fresh air system? How to choose between air purifier and fresh air system?

In Europe and the United States, air purifiers are a very common home appliance. Later, a fresh air system appeared. What is the difference between them and air purifiers?


Simply put, air purification is based on the air in the house, continuously sucking in the dirty air and then spit out the filtered air. The new fan draws air from the window, selects filtered air, filters it into good air, and fills it into the room, leaving the unfiltered air in the room to the exclusion space. Air purifier does not conflict with fresh air. Fresh air is for ventilation in the house, while air purifier is filtering and purifying. Different demands and choices are different.


Is the outdoor air okay? Is the window dusty?


Is there an allergic person in your family?


Is it boring to sit and sleep in a squatter room?


Are there children, pets or smokers?


If you have the above troubles, then it is recommended that you start with the fresh air system.



The role of the fresh air system:


24 hours of continuous introduction of fresh air to increase the oxygen content of the indoor air can effectively remove long-term harmful gases in newly decorated houses, furniture, etc., to prevent damage to our bodies, and also remove moisture from the room, It can avoid the mold of indoor furniture and clothing, and can effectively distribute all kinds of bacteria and viruses in the room.


Selection of fresh air system:


Ventilation volume and coverage area: Generally speaking, large air volume is suitable for whole house purification, and small air volume can be purified for a certain room.


Filter: Some new fans only have electrostatic filters. It is best to choose multiple filters to save money on air purifiers.


Air supply method: The current mainstream air supply method is micro-positive pressure and two-way flow, both of which have advantages and disadvantages. Two-way flow of one pipe sucks air and one pipe exhausts air. The pressure will gradually decrease during use. At the same time, if the installation is not careful, it will cause a short circuit if the distance is too close. Micro-positive pressure has only one duct to suck in air, and air renewal is slow due to the complexity of air flow.


Heating method: There are two main types: total heat exchange and electric auxiliary heat. In theory, total heat exchange is the most energy-saving and comfortable. Heating does not require electricity and air humidity can be guaranteed. However, it is important to note that it must be completely hot when buying. The advantage of electric auxiliary heating is that it can control the temperature of the inlet air, similar to a small hair dryer, but the disadvantages are that electricity is consumed and air humidity cannot be guaranteed.


Finally, you pay for your money. Your new fan must have more functions and better results. If you choose, it depends on your family's needs and affordability.



Source: China State Grid