- Efficient Ano Low Resistance Filter Material.
- Selected high-efficiency and low resistance melt-blown materials ensure comfortable breathing while maintaining high filtration efficiency.
- Larger Interior space, more comfortable to wear.
- Cold Flow Exhalation Valve.
- Smooth air-flow.
- Optional to add exhalation valve to reduce exhalation resistance;
- Accelerate the elimination of heat and moisture, and improve the comfort of long-term wearing.
- 30 Design To Fit For Regular Facial Shape.
- Larger Interior Space, More Comfortable To Wear.
- Flexible Strap With Ultrasonic Process.
- Built-in spandex yarn;
- Comfortable to wear.
- Stretchable and durable.
