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🛡️ Stay ahead, breathe easy — protection that works as hard as you do!
The 3M 6391 Half Facepiece Reusable Respirator Assembly Kit combines NIOSH-approved P100 particulate filters with a lightweight, adjustable half facepiece respirator. Designed for professional use in environments with oil and non-oil based particles, it offers superior protection for welding, metalwork, and hazardous material exposure. Its bayonet connection system enables easy filter replacement and cleaning, ensuring durability and cost-effectiveness for demanding industrial applications.






| ASIN | B001NDN29O |
| Best Sellers Rank | #16,101 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #28 in Reusable Respirators |
| Brand Name | 3M |
| Closure Type | Strap |
| Color | Gray |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,944) |
| Filter Class | P100 |
| Fit Type | Regular |
| Global Trade Identification Number | 50051131070030 |
| Import Designation | Made in the USA and Imported |
| Included Components | 3M 6000 Series Half Facepiece Reusable Respirator and two 3M 2091 P100 Particulate Filters |
| Item Package Quantity | 1 |
| Item Type Name | Respirator |
| Item Weight | 5.12 ounces |
| Manufacturer | 3M |
| Material | Thermoplastic Elastomers |
| Material Features | Recyclable |
| Number of Items | 1 |
| Part Number | 051131070030 |
| Pattern | Respirator Assembly |
| Product Style | Half Facepiece Reusable Respirator |
| Recommended Uses For Product | Welding |
| Reusability | Reusable |
| Size | 1 Count (Pack of 1) |
| Special Features | Adjustable Headband, Lightweight |
| Specification Met | NIOSH |
| Style Number | 6391 |
| Unit Count | 1 Count |
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