Airish Plus CLEAN SHIELD Health Mask FFP2 A necessary health mask for safe and pleasant breathing by filtering the yellow dust, fine particles, and source of infections that threatens our daily life. The three-stage folding design makes it easy to wear and easy to carry around. High-efficiency filters provide an excellent defense. Highly hermeticity and easy to breathe is a three-dimensional structure. The mask's interior space is wide, so it's comfortable to use for a long time 1. Three-dimensional structure with easy breathing 2. Protection from PM2.5 & Fine Dust, Infectious Source 3. Highly defensive FFP2 High-Efficiency Filter