Frequently asked questions about Half Facepiece
1. How tight is the Half Facepiece
- The Half Facepiece body is made of natural soft colloid, which is specially designed for the face shape and the bridge of the nose. It fits perfectly with the face and has a good sealing effect; with an adjustable headband, the tightness of the half facepiece can be adjusted to strengthen the sealing effect.
2.How often should i change filters on this dust mask?
- It depends on the type of filter you buy and the frequency of use.usually replace the filter element every 8 hours and the filter box every 30 days is ok
3.Is this half facepiece suitable for any occasions ?
- Work areas with chemicals, glass, metal, paint, agriculture.The half facepiece protective against particles in mechanical work such as welding, sawing, grinding, graffiti etc