How Does the 3M 8511 Respirator, N95 Mask Cool Flow Valve Work?

N95 face masks are a hot topic once again with the upcoming second wave of COVID-19. 

Related: What is a second wave, and what will it mean for the United States? 

There are a lot of 3M N95 face mask models like 8210 plus8200 respirator8210 and the 8210v but today we are going to discuss the 3M 8511 face mask.

Related: Top 10 3M N95 Respirator Recommendations.

It’s one of the most popular face masks out there, and we will share with you what makes it so special and how exactly does its cool flow valve work.

Let’s not waste any more time and jump right into it. 

3M 8511 N95 Respirator

As an N95 respirator, the 8511 face masks provide at least 95% filtration efficiency against small airborne particles. The NIOSH approval shows that you can count on that mask to protect you against dangerous particles. The 3M 8511 respirator is a disposable respirator that will provide you with comfort but most importantly protection against viruses like COVID-19.

You can easily wear it for longer periods of time in hot or dusty environments without any problem. It has an adjustable nose clip that provides you with excellent comfort and makes it easy to breathe even in more extreme settings. The 8511 face respirator is also very durable, which means that you can count on it in every situation.

In most cases, healthcare professionals use this mask when they are treating COVID-19 patients. It’s also used by workers that do a lot of grinding, sweeping, bagging or other similar operations.

The 8511 respirator will reduce your exposure to airborne particles such as mold and tuberculosis. However, it cannot completely eliminate your risk of contracting infections or illnesses.

One of the unique features of this respirator is the 3M cool flow exhalation valve that helps you reduce heat build-up inside the mask. The 8511 face mask also has an advanced electret media that will ease your breathing even in hard environments.

This respirator is compatible with other protective equipment such as eyewear, hearing protection and gloves. Due to the 3M cool flow valve, this face mask is perfect for settings where there is a lot of heat or humidity. The cool flow valve is tested in numerous situations, and it shows that it’s better than face masks without a valve.

Now that you know what makes the 3M 8511 face respirator so great let’s discuss how exactly does its cool flow valve work.

How Does the Cool Flow Valve of the 3M 8511 Respirator Work?

The 3M cool flow valve technology is not available only on the 8511 face mask. You can find it on numerous face respirators that are created by the 3M company. This technology is used to keep workers, and healthcare professionals cool even in the hottest working environments.

Here’s how it works:

  • When you inhale, the valve pulls air through the respirator, and temperature on the surface decreases.


  • As you exhale, you fill the mask with warm and moist air. The cool flow valve expels the breath rapidly together with its natural heat. As the hot air leaves the mask, the rest of the face respirator remains cooler and becomes even more comfortable.

Yes, it’s that simple.

Thanks to the cool flow valve technology, the 3M 8511 face mask will keep you cool and comfortable no matter how hot it is outside.


To summarize, N95 face masks are of the best respirators because they filter at least 95% of airborne particles, ensuring that you’ll be protected against viruses like COVID-19.

The 3M company has created different face mask models, and one of the most commonly used is the 8511 respirator. That’s because it combines comfort with protection, ensuring that you won’t get sweaty and start touching your face while using it. It’s perfect for healthcare professionals that work with COVID-19 patients as well as workers in hot and dusty environments.

One of the best features of the 8511 face mask is the cool flow valve that reduces the heat build-up in the respirator.

Here’s how it works:

  1. When you inhale, it pulls air from the respirator, decreasing the temperature on the surface.
  2. When you exhale and fill the mask with warm and moist air, the cool flow valve removes the breath and heat fairly quickly. When the heat leaves the mask, the rest of the respirator remains cool.

This technology makes the 3M 8511 respirator one of the most searched face masks in the US. At the beginning of the COVID-19 pandemic, there were shortages in a lot of places, including hospitals, but now most places have a supply of face respirators.

You can order a 3M 8511 face mask right here.

If you want to purchase more than 2,000 face masks, you can reach out to us here, and we will help you out.

If you’re interested in learning more about COVID-19, face masks and other personal protective equipment, you can check out some of the following articles:

Tips for staying protected during phased reopening.

What to do if you come in contact with someone who has coronavirus (and think you might, too)

Will a Dusk Mask Protect Me from COVID-19?

The Checklist to Avoid Fraudulent N95 Respirators.

The Commoditization of Face Masks and PPE – What Happened?

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