With air pollution becoming a persistent concern in recent years, more families are choosing to install fresh air systems. These systems filter outdoor air before bringing it indoors, while expelling stale air outside to maintain a healthy and comfortable indoor environment. But a common question remains: should a fresh air system run continuously, 24 hours a day?
Why Continuous Operation Matters
The answer is yes — it is recommended to keep the system running 24/7. Unlike opening windows, which can bring secondary pollution indoors, continuous operation ensures a stable supply of clean, oxygen-rich air. This allows family members to enjoy fresh air anytime, similar to being in a “forest oxygen bar.”
When outdoor air quality is poor, indoor air is quickly affected. A fresh air system works by gradually diluting indoor pollutants with filtered outdoor air, while expelling harmful gases. Much like pouring clean water into a cup of dirty water until it becomes clear, this purification process takes hours to reach optimal air quality. Frequent interruptions only increase the system’s workload and reduce efficiency.
Energy Use and Practical Considerations
Modern fresh air systems are designed with low power consumption. Even when running 24 hours a day, their energy use is significantly lower than central air conditioning. The additional electricity cost is generally acceptable compared with the health benefits.
For long absences from home, users can switch the system off temporarily and use remote control to restart it a few hours before returning. This ensures fresh, clean air upon arrival without unnecessary energy use.
Learn more about efficient fresh air solutions here: Holtop Eco-Pair Plus ERV
Post time: Aug-20-2025
