Material: PP non-woven fabric Color: White/Blue/Green Size: Normal 17.5*9.5cm, can also do 14.5*9.5cm child type Gram weight: 20g/㎡+20...

Material: non-woven fabric + activated carbon cloth + filter paper + melt-blown cloth Color: White Size: Usually 14*13*5cm Packing: 20 PCS/box, 400 PCS/box

Material: PP non-woven fabric Color: White/Blue/Green Size: Normal 17.5*9.5cm, can also do 14.5*9.5cm child type Gram weight: 20g/㎡+20...

Material: non-woven fabric + filter paper + melt-blown cloth + breathing valve Color: White Size: Usually 14*13*5cm Packing: 20 PCS/box, 400 PCS/box

Material: PP non-woven fabric Color: White/Blue/Green Size: Normal 17.5*9.5cm, can also do 14.5*9.5cm child type Gram weight: 20g/㎡+20...

Material: non-woven fabric + filter paper + melt-blown fabric Color: White Size: Usually 14*13*5cm Packing: 20 PCS/box, 400 PCS/box

Material: non-woven fabric Color: White/Blue/Green Gram weight: 20g/㎡+25g/㎡ 尺寸：17.5*9.5cm Packing: 50 PCS/box, 2000 PCS/box or...

Material: wood pulp paper + stretch silk Color: White Size: Usually 20*7.5cm G weight: Conventional 15g/㎡+15g/㎡ Packing: 100 PCS/box, 10000 PCS/box...

Material: PP non-woven fabric Color: White/Blue/Green Size: Normal 17.5*9.5cm, can also do 14.5*9.5cm child type Gram weight: 20g/㎡+25...

Suitable for construction, factories, travel and other harmful pollutants and dust places

Suitable for construction, factories, travel and other harmful pollutants and dust places

Suitable for construction, factories, travel and other harmful pollutants and dust places

Material: wood pulp paper + stretch silk Color: White Size: Usually 20*7.5cm Gram weight: Normal 15g/㎡ Packing: 100 PCS/box, 10000 PCS/box

Color: White/Blue/Green Size: Normal 17.5*9.5cm, can also do 14.5*9.5cm child type Gram weight: Conventional 40g/㎡ Packing: 50 PCS/box, 20...