3M-8511 3M N95 Particulate Respirator 8511


3M Particulate Respirator 8511, N95 is a disposable particulate respirator that is designed to help provide reliable respiratory protection of at least 95 percent filtration efficiency against certain non-oil based particles. The respirator is designed for use for particles such as those from grinding, sanding, sweeping, sawing, bagging, or other dusty operations. This respirator can also help reduce inhalation exposures to certain airborne biological particles (examples: mold, Bacillus anthracis, Mycobacterium tuberculosis), but cannot eliminate the risk of contracting infection, illness, or disease. Soft inner material provides added comfort while the cup shape design makes the respirator spacious and durable. Braided headbands and an adjustable M-nose clip helps provide a custom and secure seal. The respirator incorporates 3M’s proprietary technology with advanced electrostatically charged microfiber filter media designed for ease of breathing. This respirator is compatible with a variety of protective eyewear and hearing protection. Fitted with a 3M Cool Flow Exhalation Valve, this respirator is ideally suited for work situations involving heat, humidity, or long periods of wear. The proprietary 3M Cool Flow valve is designed to release hot, humid exhaled breath quickly, helping to prevent an unpleasant build up of heat inside the facepiece - a significant cause of discomfort to respirator wearers. The Cool Flow valve’s efficiency in keeping breathing cool and comfortable has been demonstrated through testing*: the atmosphere inside a respirator with a Cool Flow valve is on average 7.5°F cooler than the similar product without the valve. This makes Cool Flow valve respirators ideal for long periods of wear, especially where conditions are hot, humid or physically demanding. *Testing conducted in a 3M laboratory. Testing protocol, data generation and conclusions were reviewed and approved by an expert from The University of Minnesota.


  • NIOSH approved for at least 95 percent filtration efficiency against certain non-oil based particles
  • 3M Cool Flow Exhalation Valve helps reduce heat build-up inside the respirator
  • M-Nose clip adjusts easily for fewer pressure points and greater comfort.
  • Braided headbands two-strap design with dual point attachment helps provide a secure seal
  • 3M Cool Flow Exhalation Valve reduces heat build-up inside the respirator
  • Spacious and durable
  • Designed to increase comfort 
  • Advanced Electret Media is designed for ease of breathing

This disposable N95 particulate respirator features the proprietary 3M Cool Flow Valve and helps provide comfortable, reliable worker respiratory protection. It is ideally suited for hot/dusty work settings that require long periods of wear.


  • Acid Gas Reduction - No
  • Advanced Electrostatic Media - Yes
  • Braided Comfort Strap - Yes
  • Cake-Resistant Filter Media - No
  • Class - Comfort Plus, Specialty
  • Cool Flow Exhalation Valve - Yes
  • Enhanced Comfort - No
  • Environment - Hot or Humid - Yes
  • Exhalation Valve - Yes
  • Face seal - No
  • Features
    • 3M Cool Flow Valve, Advanced Electret Media, Braided Comfort Strap, M Nose clip, Stapled Headband
  • Filter Class - N95
  • Flame Resistance (ASTM D2859-96) - No
  • Fluid Resistant (ASTM F1862) - No
  • Hazard Type
    • Mold, Silica
  • Maintenance Free - Yes
  • Nose clip Style - M-nose clip
  • Nose foam - No
  • Organic Vapor Reduction - No
  • Recommended Application
    • Agricultural Production, Airborne Biological Particles, Assembly & Mechanical, Bagging, Cleaning, Composite Finishing, Dry Chemical Handling, Final Finish, Foundry Operation, Grinding, Paint Preparation, Petrochemical, Petrochemical Manufacturing, Pharmaceutical Manufacturing, Processing of Minerals, Sanding, Textile Operations, Welding
  • Recommended Industry
    • Agricultural, Commercial Buildings, Construction, Design & Construction, Food Processing, Food Safety, General Manufacturing, Heavy Infrastructure, Industrial Maintenance, Mining, Oil & Gas, Transportation
  • Registered Medical Device - No
  • Respirator Size - Standard
  • Respirator Style - Cup
  • Shelf Life - 5 Year
  • Specifications Met - Assigned Protection Factor (ADF) = 10, N95
  • Strap Attachment Type - Stapled
  • Strap Material - Braided Elastic
  • eClass 14 Classification Group - 40220112