---
product_id: 862290
title: "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)"
brand: "3m"
price: "R787"
currency: ZAR
in_stock: true
reviews_count: 13
category: "3 M"
url: https://www.desertcart.co.za/products/862290-3m-n95-respirator-8511-cool-flow-valve-10-pack-niosh
store_origin: ZA
region: South Africa
---

# Adjustable custom noseclip 50% easier breathing 95% filtration efficiency 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)

**Brand:** 3m
**Price:** R787
**Availability:** ✅ In Stock

## Summary

> 🛠️ Work hard, breathe easy — the mask that keeps up with your hustle.

## Quick Answers

- **What is this?** 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) by 3m
- **How much does it cost?** R787 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/862290-3m-n95-respirator-8511-cool-flow-valve-10-pack-niosh)

## Best For

- 3m enthusiasts

## Why This Product

- Trusted 3m brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Custom Fit Comfort:** Adjustable M-noseclip and stretchable braided headbands ensure a secure, personalized seal without pressure points.
- • **Ready for Any Task:** Disposable convenience meets advanced filter media—perfect for renovation, sanding, and dusty environments.
- • **Breathe Easy All Day:** Cool Flow Valve technology reduces exhalation effort by up to 50%, keeping you comfortable during long wear.
- • **Pro-Level Protection:** NIOSH-approved N95 filters 95% of harmful particles for trusted safety on the job.
- • **Lightweight & Durable:** Engineered for extended use with a breathable, lightweight design that won’t weigh you down.

## Overview

The 3M N95 Respirator 8511 features NIOSH-approved filtration with advanced electrostatic media and a Cool Flow exhalation valve that makes breathing up to 50% easier. Designed for professionals, it offers a lightweight, comfortable fit with an adjustable noseclip and stretchable headbands, providing reliable protection against dust, pollen, mold spores, and other non-oil-based particles during long periods of wear.

## Description

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.

Review: Excellent masks - 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.
Review: Good mask. - My wife is a dog groomer and has AGS. She had a reaction recently so we tried one I use in my shop. It works great. The vent makes a huge difference. It keeps her goggles from fogging up.

## Features

- NIOSH-APPROVED N95 for at least 95 percent filtration efficiency against certain non-oil-based particles and aerosols
- 3M COOL FLOW EXHALATION VALVE helps direct exhaled air downward and allows for easy breathing
- UP TO 50% EASIER BREATHING. Compared to non-valved 3M 8200 Testing
- ADVANCED FILTER MEDIA for easy breathing
- ADJUSTABLE M-NOSECLIP helps provide a custom and secure seal
- STRETCHABLE, BRAIDED HEADBANDS for comfort
- LIGHTWEIGHT DESIGN for comfort
- COMFORTABLE for long periods of wear
- CONVENIENT, DISPOSABLE DESIGN

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002YKBV2 |
| Best Sellers Rank | #307 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Disposable Respirator Safety Masks |
| Date First Available | November 9, 2004 |
| Department | unisex-adult |
| Is Discontinued By Manufacturer | No |
| Item Weight | 5 ounces |
| Item model number | 8511PB1-A-PS |
| Manufacturer | 3M |
| National Stock Number | 4240-01-247-2348 |
| Product Dimensions | 5 x 6.2 x 8.5 inches |

## Product Details

- **Brand:** 3M
- **Color:** White
- **Filter Class:** N95
- **Number of Items:** 1
- **Size:** 10 Count (Pack of 1)

## Images

![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) - Image 1](https://m.media-amazon.com/images/I/71bnz+IFLdL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Does It good for filter pm 2.5?**
A: Technical Data below is from 3M Corporate:

Short Answer: 
3M N100 Mask filters out 99.97% of particles larger than 0.3-Microns (PM2.5 means 2.5-microns or larger). A 3M N100 Mask works well against cigarette smoke and smog covered cities. 

Longer Answer: 
Your concern is with PM2.5. See explanation below:


The most harmful pollutant to human health is called PM 2.5, particle matter smaller than 2.5 microns in diameter that's found in soot, smoke, and dust. PM 2.5 is especially dangerous because it can get lodged in the lungs and cause long-term health problems like asthma and chronic lung disease.

PM 2.5 starts to become a major health problem when there is more than 35.5 micrograms (µg) of PM 2.5 per cubic meter of air, according to the Environmental Protection Agency. But the World Health Organizations recommends keeping yearly average PM 2.5 levels three times lower than that.

The most polluted cities on Earth have anywhere between 11 and 20 times that amount - based on the new WHO data from cities that collect it. 

Hope this helps... 😁 


Sincerely, 
Jacob
SurvivalGeek (YouTube)
https://www.youtube.com/channel/UCfRsUPToBXp4ZIre__dJg4A

**Q: Is this mask effective against smoke from wildfires (in surrounding cities, not fighting the fire)? How about use while spray painting? Thanks!!**
A: I noticed that when I smell smoke from a wildfire and then put on an N95 I can't smell smoke. So it has some effect. I carry them in my car and when I travel. But - it doesn't work with spray painting. That requires another type of filter. If I spray paint outside I use an N95 and that works if there's a gentle breeze to carry fumes away.

**Q: Why is this unit 70% more in cost than the 3M Particulate Respirator 8210V, N95  Looks to be the same thing.**
A: You're absolutely right.  You can visit the 3M site where it shows you all model numbers for their protective masks. Model 8511 specifically says on their website that this mask DOES NOT PREVENT VIRUS, GERM PROTECTION.   This is a description on one of 3M's sites w/ description of what 8511 which is given category on N95 (this is also not FDA approved).  product Code	8511  From 3M website:  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
Product Color	White
Product Type	Dust and other Particles
Recommended Industry	Agricultural, Commercial Buildings, Construction, Design & Construction, Food Processing, Food Safety, General Manufacturing, Heavy Infrastructure, Industrial Maintenance, Mining, Oil & Gas, Transportation

**Q: Is this mask reusable？**
A: Although mentioned in other responses that it does not filter out certain viruses and bacteria, it is a good mask.  Also health authorities do not want you to use this mask as it does not filter out your own exhalations.  That being said it was the only mask I had during the early months of the pandemic.  And yes, I have used each mask over several times.  First after each use let the mask dry out for 24hrs.  Second after drying spray the inside and the outside of the mask with 70% alcohol.   Let it dry for 24hrs.   Then it should be ready to use again.  If the mask is dirty or damaged throw it out.  It was better than nothing.  During the pandemic I social distanced and stayed home only to go our for pharmacy and groceries and washed my hands and clothes.  I also would wipe down anything I brought into the home with either an 70% alcohol wipe or Clorox wipe.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent masks
*by C***A 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.

### ⭐⭐⭐⭐⭐ Good mask.
*by P***N on January 18, 2026*

My wife is a dog groomer and has AGS. She had a reaction recently so we tried one I use in my shop. It works great. The vent makes a huge difference. It keeps her goggles from fogging up.

### ⭐⭐⭐⭐⭐ Good filter, easy exhale, good fit, good price.
*by R***E on December 17, 2025*

These are my go to masks for the woodshop. I need the valved mask to exhale without the effort that the regular masks require. The price is great for a quality mask. I have discarded my other masks that purport to filter as well, but with difficulty in exhaling, and with flimsy nose pieces. These just work.

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-24*