- The 3M 9004 IN is a dust mask composed of three layers of filters.
- The outermost layer filters out the largest dust particles, the innermost layer preserves the respirator’s shape and the middle layer is composed of electrostatic filter media.
- It has the ability of this respirator mask to filter above 90% of 0.3-micron particulate dust. (Scientific research has proven that for all dust particles sizes, 0.3-micron dust are the most difficult to filter effectively).
- This 3m mask is used as a disposable face mask for respiratory protection against fine dust particles. It is a bestselling Safety mask in 3m Safety products line.
- 3M 9004 mask has a cup shape design and comes with aluminum nose clip & neoprene elastic band for comfortable fitting on every face.
- 3m 9004 is not an N95 mask and it is not a breathing mask used in acid/alkaline/gas particles.