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3M N95 RESPIRATOR 8511, COOL FLOW VALVE, 10 PACK, NIOSH-APPROVED, ADVANCED FILTER MEDIA FOR EASY BREATHING, COMFORTABLE FOR LONG PERIODS OF WEAR, HELPS FILTER POLLEN, MOLD SPORES & DUST (8511PB1-A-PS)
3M N95 RESPIRATOR 8511, COOL FLOW VALVE, 10 PACK, NIOSH-APPROVED, ADVANCED FILTER MEDIA FOR EASY BREATHING, COMFORTABLE FOR LONG PERIODS OF WEAR, HELPS FILTER POLLEN, MOLD SPORES & DUST (8511PB1-A-PS)
3M N95 RESPIRATOR 8511, COOL FLOW VALVE, 10 PACK, NIOSH-APPROVED, ADVANCED FILTER MEDIA FOR EASY BREATHING, COMFORTABLE FOR LONG PERIODS OF WEAR, HELPS FILTER POLLEN, MOLD SPORES & DUST (8511PB1-A-PS)
3M N95 RESPIRATOR 8511, COOL FLOW VALVE, 10 PACK, NIOSH-APPROVED, ADVANCED FILTER MEDIA FOR EASY BREATHING, COMFORTABLE FOR LONG PERIODS OF WEAR, HELPS FILTER POLLEN, MOLD SPORES & DUST (8511PB1-A-PS)
3M N95 RESPIRATOR 8511, COOL FLOW VALVE, 10 PACK, NIOSH-APPROVED, ADVANCED FILTER MEDIA FOR EASY BREATHING, COMFORTABLE FOR LONG PERIODS OF WEAR, HELPS FILTER POLLEN, MOLD SPORES & DUST (8511PB1-A-PS)
3M N95 RESPIRATOR 8511, COOL FLOW VALVE, 10 PACK, NIOSH-APPROVED, ADVANCED FILTER MEDIA FOR EASY BREATHING, COMFORTABLE FOR LONG PERIODS OF WEAR, HELPS FILTER POLLEN, MOLD SPORES & DUST (8511PB1-A-PS)
3M N95 RESPIRATOR 8511, COOL FLOW VALVE, 10 PACK, NIOSH-APPROVED, ADVANCED FILTER MEDIA FOR EASY BREATHING, COMFORTABLE FOR LONG PERIODS OF WEAR, HELPS FILTER POLLEN, MOLD SPORES & DUST (8511PB1-A-PS)
3M N95 RESPIRATOR 8511, COOL FLOW VALVE, 10 PACK, NIOSH-APPROVED, ADVANCED FILTER MEDIA FOR EASY BREATHING, COMFORTABLE FOR LONG PERIODS OF WEAR, HELPS FILTER POLLEN, MOLD SPORES & DUST (8511PB1-A-PS)
3M N95 RESPIRATOR 8511, COOL FLOW VALVE, 10 PACK, NIOSH-APPROVED, ADVANCED FILTER MEDIA FOR EASY BREATHING, COMFORTABLE FOR LONG PERIODS OF WEAR, HELPS FILTER POLLEN, MOLD SPORES & DUST (8511PB1-A-PS)
3M N95 RESPIRATOR 8511, COOL FLOW VALVE, 10 PACK, NIOSH-APPROVED, ADVANCED FILTER MEDIA FOR EASY BREATHING, COMFORTABLE FOR LONG PERIODS OF WEAR, HELPS FILTER POLLEN, MOLD SPORES & DUST (8511PB1-A-PS)
3M N95 RESPIRATOR 8511, COOL FLOW VALVE, 10 PACK, NIOSH-APPROVED, ADVANCED FILTER MEDIA FOR EASY BREATHING, COMFORTABLE FOR LONG PERIODS OF WEAR, HELPS FILTER POLLEN, MOLD SPORES & DUST (8511PB1-A-PS)
3M N95 RESPIRATOR 8511, COOL FLOW VALVE, 10 PACK, NIOSH-APPROVED, ADVANCED FILTER MEDIA FOR EASY BREATHING, COMFORTABLE FOR LONG PERIODS OF WEAR, HELPS FILTER POLLEN, MOLD SPORES & DUST (8511PB1-A-PS)
3M N95 RESPIRATOR 8511, COOL FLOW VALVE, 10 PACK, NIOSH-APPROVED, ADVANCED FILTER MEDIA FOR EASY BREATHING, COMFORTABLE FOR LONG PERIODS OF WEAR, HELPS FILTER POLLEN, MOLD SPORES & DUST (8511PB1-A-PS)

CONDITION: Open Box

Item is in open or damaged packaging and has not been tested. Item may show signs of handling and may be missing parts or accessories.

Returns Accepted

We accept returns under specific cicumstances.
See return policy for details

3M N95 RESPIRATOR 8511, COOL FLOW VALVE, 10 PACK, NIOSH-APPROVED, ADVANCED FILTER MEDIA FOR EASY BREATHING, COMFORTABLE FOR LONG PERIODS OF WEAR, HELPS FILTER POLLEN, MOLD SPORES & DUST (8511PB1-A-PS)

4.6 stars

3M N95 RESPIRATOR 85... see more >

Open Box
Returns Accepted

Bidding Starts At

$3.50

MSRP $23.36
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Product Description Part of our Pro Series, the 3M Cool Flow Valve Particulate Respirator 8511 is designed with the pro in mind to help bring you protection and comfort. The Cool Flow Exhalation Valve helps release warm and moist exhaled breath from inside the respirator. This N95 respirator features Advanced Electrostatic Media that enhances the capture of airborne particles and is designed for easy breathing. An adjustable M-noseclip helps provide a custom, secure seal. Whether you're hanging drywall or sanding a floor, rely on the trusted protection of the 3M Cool Flow Valve Particulate Respirator 8511. From the Manufacturer 3M Tekk Protection 10 Pack Respirator Cool Valve Filtering Facepiece Particulate Respirator N95 Lightweight Comfortable "M" Nose Clip Recommended For Sanding & Preparation Before Painting NIOSH Approved: N95.


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Christina
on January 11, 2026

These masks are excellent. We're renovating a very old barn with dirt floors and decades of dust and grime. The other week, we spent a maskless hour cleaning out one section of this barn and had to stop because my husband and I both had asthma attacks and were struggling to breathe until the next day. I immediately ordered these masks. Yesterday, we went back out to work and wow do these masks make a HUGE difference. No asthma attacks or dust/manure in our noses or lungs. We worked for a few hours without any issues. They're also much cooler than most masks I've worn. I didn't feel like my face was sweating off. Due to the elastic bands, they also fit well - neither too tight nor too loose on my husband's larger head or my smaller one. Overall, I'm incredibly glad I bought these and won't be doing any renovation work without them ever again.

Patrick Clancy
on June 12, 2026

Please note that due to the exhalation vent, this respirator is not suitable for biological / pandemic wear. It may protect you, but if you are infected it won't protect others. Having said that, it's an excellent respirator for general use where you have to worry about particulates in the air. I use it primarily when working outside mowing and landscaping to minimize allergy exposure. I also use it in my workshop if I'm creating a lot of dust, like sanding or grinding.

Dennis Cole
on May 6, 2026

I like this N95 mask because it lets you breathe comfortably, but it does keep out the dust and pollen.

Bob
on January 25, 2026

Seems well made . Good price

William Aversa
on May 28, 2026

seem to have done the job well, I'm still alive

Ibear60
on May 17, 2026

The rubber band straps are annoying but works great at keeping out the dust while running a power sander.

Dan K
on June 19, 2026

These are the best vented n95s I have used. I work outdoors in a very dusty environment. I also enter clean areas often throughout the day. This mask is easy to don and doff compared to other brands including the other mask from this same brand. The only negative is that it’s too tight but I guess that’s a good thing.

hope
on June 14, 2026

Great product at a reasonable price.

Juvenal G.
on January 3, 2017

Lo compre para mis trabajos de hobby de carpintería, altamente recomendable, protege y es cómodo, con el prácticamente no respiras nada del polvo o particular de los cortes en las maderas

Satyajit Barman
on June 12, 2021

3M is a very known respirator manufacturer. As usual it's quality is non comparable in local market

Peter
on June 8, 2026

Good product, works well and comfortable

Cliente de Amazon
on August 6, 2019

perfecto!

Ross G Robinson
on October 4, 2025

I much prefer this style of "dust mask" over the cheaper ones that fold flat. These one fit my face much better and the central valve makes it much easier to exhale (without your breath escaping out the sides of the cheaper mask) These are real 95 masks

  • Brand

    3M
  • Filter Class

    N95
  • Size

    10 Count (Pack of 1)
  • Color

    White
  • Number of Items

    1
  • Brand Name

    3M
  • Unit Count

    10 Count
  • UPC

    051138543433
  • Global Trade Identification Number

    00051138543433, 50051138543438
  • Part Number

    8511PB1-A-PS
  • Item Type Name

    Disposable Respirators
  • Included Components

    40 Pack
  • Warranty Description

    Limited Warranty. This 3M product will be free from defects in material and manufacture. If this 3M product is defective, your exclusive remedy shall be, at 3M's option, replacement of the 3M product or refund of the purchase price of the 3M product. This warranty gives you specific legal rights, and you may have other rights which may vary from state to state, or country to country. To obtain warranty service contact 3M at 1-800-388-3458.
  • Item Weight

    8.96 ounces
  • Style Number

    8511PB1-A-PS
  • Manufacturer

    3M
  • Best Sellers Rank

    #270 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #3 in Disposable Respirator Safety Masks
  • ASIN

    B0002YKBV2
  • Material

    Fabric
  • Product Care Instructions

    Hand Wash
  • Special Features

    NIOSH-APPROVED N95 for at least 95 percent filtration efficiency against certain non-oil-based particles and aerosols
  • Reusability

    Disposable
  • Closure Type

    Pull On
  • Fit Type

    Universal
  • Item Dimensions D x W x H

    5"D x 6.2"W x 8.5"H
  • Item Package Quantity

    1
  • Product Style

    8511p10-dc
  • Pattern

    Respirator
  • Item Shape

    Rectangular
  • Recommended Uses For Product

    Our most popular valved disposable respirator, the 3M Cool Flow Valve Particulate Respirator is equipped with the 3M Cool Flow Valve, which helps release warm, exhaled breath from inside the respirator, helping to enhance your comfort during longer jobs. This N95 respirator features 3M Advanced Electrostatic Media that enhances the capture of airborne particles and is designed for easy breathing. This disposable respirator may be suitable for activities such as sanding, drywall cutting, sweeping, sawing, wood working, fiberglass insulating, yard work, grinding and dusting. An adjustable M-noseclip and stretchable headbands help provide a custom, secure seal. This respirator contains no components made from natural rubber latex. WARNING AND LIMITATIONS: General Public/DIY Use: Use ONLY in NON-HARMFUL environments or in accordance with air quality recommendations of your public health authority. Workplace/Occupational/Hazardous Use: Use under a government-compliant respiratory protection program (e.g. OSHA). WARNING: This respirator helps protect against certain particles. Misuse may result in sickness or death. For correct use, consult supervisor and User Instructions or call 3M in USA at 1-800-247-3941. In Canada, call 1-800-267-4414.
  • Specification Met

    NIOSH N95
  • GTIN

    051138543433
  • Recent Sales

    10K+ bought in past month

Buyer’s Premium

A 15% buyer’s premium will be added to the sale price of all purchases.

Store Auction Lots Condition

All items are uninspected and the condition is unknown unless otherwise explicitly stated. Items labeled as “Open Box” may have been previously opened, handled, returned, or repackaged. Packaging may be damaged, incomplete, or missing, and items may show signs of handling or cosmetic wear. Items are not tested unless specifically noted. Individual items are available for inspection at Korting Outlet located at 159 1st Court, Grand Rapids, Michigan 49534 during store hours.

The highest bids serve as legally binding contracts, and all sales are considered final. Items are sold on an “as is” basis, without any guarantees, warranties, or the possibility of refunds, whether written, expressed, or implied. The operational condition of an item may not be known or listed in the item description. While we may provide information on the condition of some items, including items marked as “New,” such information is not guaranteed.

All items are sold with all faults and without any warranty, whether expressed or implied, regarding merchantability or fitness for a particular purpose. The sale is conducted on an “as is, where is” basis with all faults. Buyers are strongly encouraged to physically inspect items before placing bids during the inspection period. Once submitted, bids cannot be withdrawn before, during, or after the auction for any reason.

The buyer acknowledges that these terms, along with other terms outlined below, can only be amended or revised in writing, signed by the auctioneer. Any representations made by Korting or its agents do not alter these “as is, where is with all faults” terms. Descriptions provided on products or through advertising, including condition labels such as “New,” are not guaranteed, and buyers rely solely on their own inspection. While information in sale advertising is believed to be accurate, Korting assumes no responsibility for errors or omissions.

Auction Closing Times

Posted closing times are in Eastern Time and may be extended through dynamic bidding. Dynamic bidding extends the auction close time until there are five minutes without bidding activity. Korting reserves the right to close early or extend auctions at its discretion.

Payment

Payments will be processed through Stripe.

Refund Policy

Due to the nature of liquidation merchandise, returns are accepted only under the following circumstances:

  • Wrong item received
  • Major undisclosed damage that significantly affects functionality or value
  • Item arrives nonfunctional or dead on arrival (unless listed as untested, for parts, or salvage)
  • Missing critical components necessary for basic operation that were not disclosed in the listing
  • Counterfeit items or items materially different from the listing description

The following conditions are not eligible for return or refund:

  • Buyer’s remorse or accidental purchases
  • Minor cosmetic wear, scratches, dents, scuffs, or signs of prior handling
  • Damaged, worn, or missing retail packaging
  • Compatibility issues with buyer equipment, software, or intended use
  • Missing non-essential accessories, manuals, inserts, cables, or packaging materials unless specifically stated in the listing

All return requests must be submitted within 72 hours of delivery and include clear photos and/or video documentation of the issue. We reserve the right to deny returns that do not meet the above criteria.

.

Sales Tax

All orders are subject to the 6% Michigan sales tax. Tax-exempt buyers must have a current tax-exempt certificate on file before sales tax can be removed from an invoice.

Failure to Pay or Remove Items

Korting reserves the right to charge a 15% non-refundable restocking fee for items not paid for and picked up within seven days of the auction closing. Such items will be considered abandoned and forfeited to Korting. Korting may resell any abandoned or forfeited items.

3M N95 RESPIRATOR 8511, COOL FLOW VALVE, 10 PACK, NIOSH-APPROVED, ADVANCED FILTER MEDIA FOR EASY BREATHING, COMFORTABLE FOR LONG PERIODS OF WEAR, HELPS FILTER POLLEN, MOLD SPORES & DUST (8511PB1-A-PS)