Pocket bag filters are rated under ‌EN 779‌ and ‌ASHRAE 52.2‌ standards:

‌F5–F8‌ (EN 779): Medium to high efficiency, capturing 65–95% of particles at 0.4 µm

‌MERV 14–16‌: Equivalent to F7–F8 in U.S. standards

‌HEPA-grade variants‌ exist for critical environments like pharmaceutical labs