Formaldehyde removal by fresh air system: principles and mechanisms
A fresh air system, as the name suggests, is a ventilation device that can introduce fresh outdoor air and exhaust polluted indoor air. It filters outdoor air through pipes and sends it into the room, while also expelling polluted indoor air, forming an air cycle. So, how does the fresh air system remove formaldehyde?
Firstly, the fresh air system continuously introduces fresh outdoor air, increasing the fluidity of indoor air and helping to dilute and exhaust harmful gases such as formaldehyde indoors. Secondly, the built-in filtering devices in the fresh air system, such as HEPA filters, activated carbon filters, etc., can effectively filter out harmful substances such as formaldehyde, benzene, TVOC, etc. in the air, ensuring that the air sent into the room is fresher and healthier.
However, it is worth noting that the formaldehyde removal effect of the fresh air system is not achieved overnight. It requires a continuous process of gradually reducing indoor formaldehyde concentration by continuously introducing fresh air and expelling polluted air. In addition, the formaldehyde removal efficiency of the fresh air system is also influenced by various factors such as its design, installation, and usage conditions.