1.With CE approval
2.Material: nonwoven, melt blown filter paper; unique surface water resistance and soft lining
3.Common size:17.5×9.5cm.
4.Adjustable nose piece for easy use.
5.Style: Elastic ear-loop.
- Particle Filtration Efficiency (PFE)>95% ; Bacterial Filtration Efficiency(BFE%)>99%.