Global Air Filtration Standards: Understanding the Difference Between G1-G4 and F5-F9

In the complex landscape of industrial air purification, understanding international compliance standards is the first step toward building a high-efficiency HVAC system. While the historical EN779:2012 benchmark remains a widely recognized baseline for filter efficiency, the industry continues to transition toward the more comprehensive ISO 16890 standard. Mastering the correlation between these grades is essential for achieving optimal air quality and facility energy efficiency.

To help global industrial buyers navigate this transition, Chuqi provides fully certified filtration media across all standardized efficiency tiers. From G1–G4 primary pre-filters engineered to reduce systemic loading, to F5–F9 fine filtration media designed for precision odor and VOC control, our products ensure your operations stay fully compliant and highly cost-effective.

Ready to upgrade your system’s filtration efficiency? Read our expert guide below or inquire directly for a comprehensive factory price list.

air filter factory certifications iso ce
Share the Post:
Do you have any questions about how our air filtration products apply to your specific industry?
Scroll to Top