Description
Model D363 This product is the European standard with FFP3 NRD , which can filter oily and non-oily particles with a filtration efficiency of at least 99%.
The difference between NR and NR D masks is that the substances tested are different. The detection substances of NR are Nacl and DOP, which represent non-oily and oily particles respectively. NR D is based on these tested and added a dolomite blockage test. The specific method is to expose the mask to dolomite dust of 0.7 ~ 12μm size, the dust concentration is as high as 400 ± 100mg / m3, and then 2 liters each time The simulated breathing rate filters the dust with a mask. The above test is continued until the accumulated dust amount per unit time reaches 833 mg ‧ h/m 3 or the peak resistance reaches the specified value, and then the filter effect and respiratory resistance of the mask are tested.
Application:
- Building an road construction
- Heavy industry
- Light Industry
- Petrochemical industry
- Chemical-Pharmaceutical industry
- Food industry and cleaning
- Service sector and crafts
Material: Polypropylene non-woven
Mask Style: Series Folding dustproof
Size: One size available – fits most adult
Color: White
Package:
10pcs/ Boxes
200pcs / Case
