There are four floors:
1.The first layer (surface layer) adopts 50g double S grade non-woven fabric

2.The second layer uses 95+ melt blown cloth 25g.

3.The third layer uses 95+ melt blown cloth 25g.

4.The fourth layer is made of double S grade skin-friendly non-woven fabric 25g

Dimensions: 20.5cm * 8.2cm

Quantity: 20 pcs/box

Executive standard: GB2626-2019

Filtering effect: ≥95%

Validity period: 2 years

Advantages: While ensuring over-efficiency, it is light and breathable, which effectively reduces breathing resistance and makes breathing more enjoyable. It is stored in a well-ventilated room without corrosive gas, with a relative humidity of no more than 80%, without heavy pressure, avoiding heat sources and direct sunlight

Q: When can I get the price?
A:Usually we quote within 24 hours after we get your inquiry. We are the white-listed manufacturer