The inner cover plate is designed to protect the inside surface of the filter from spark and spatter. Can be used to increase +2 dark shades of the welding filter.
The new European standard EN ISO 16321: what’s changing for eye protection
24-2-2026
The new European standard EN ISO 16321 has been mandatory since November 2025. Find out what’s changing in eye protection requirements — and how to keep your PPE range fully compliant and up to date .