Does It good for filter pm 2.5?

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

Is this mask effective against smoke from wildfires (in surrounding cities, not fighting the fire)? How about use while spray painting? Thanks!!

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.

Why is this unit 70% more in cost than the 3M Particulate Respirator 8210V, N95 Looks to be the same thing.

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

Is this mask reusable？

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.

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😷 Elevate your protection game with breathable, professional-grade comfort!

BREATHE EASY WORK HARD - Up to 50% easier breathing thanks to the innovative Cool Flow exhalation valve—stay fresh even during marathon work sessions.
LIGHT AS AIR TOUGH AS NAILS - Lightweight design paired with stretchable braided headbands delivers all-day comfort without compromising durability.
NIOSH APPROVED SAFETY STANDARD - Certified N95 filtration guarantees at least 95% efficiency against non-oil-based particles—your trusted shield on the job.
PRECISION FIT MAXIMUM PROTECTION - Adjustable M-Noseclip ensures a snug, personalized seal that blocks out pollen, dust, and mold spores with confidence.
DISPOSABLE CONVENIENCE PROFESSIONAL GRADE - 10-pack disposable masks designed for hassle-free use, perfect for busy professionals who demand both safety and style.

The 3M N95 Respirator 8511 features NIOSH-approved 95% filtration efficiency with an advanced Cool Flow exhalation valve that reduces breathing resistance by up to 50%. Designed for long-term comfort, it includes an adjustable M-Noseclip and stretchable braided headbands for a secure, custom fit. This lightweight, disposable 10-pack mask effectively filters pollen, mold spores, dust, and other non-oil-based particles, making it ideal for professional environments requiring reliable respiratory protection.

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Unit Count	10 Count
Item Dimensions D x W x H	8.5"D x 6.25"W x 5"H
Number of Items	1
Size	10 Count (Pack of 1)
Recommended Uses For Product	Sawing,Oil,Sanding‎,Grinding‎
Style	Paint/Sanding
Color	White
Material Type	N95
Reusability	Disposable
Closure Type	Pull On
Special Features	Exhalation Valve
Filter Class	N95

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)

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