for welding the P100/2097 filter is standard are these better? I get throat irritation & coldlike symptoms after welding old steel, galvanized fumes

yes they are. but as other say, the best thing is to get some sort of fume extraction going. I built one for less than 100 dollars that pulls 800cfm. if you are getting symptoms use amazon to find the bits you need to make a good cheap system to protect yourself . the growing weed industry means there are lots of functional cheaper fans available and lots of flexible ducting. i got a fan, and 25' of ducting for about 70 bucks, throw in screws, clips ,vent covers and you are done under $100.... got all of it on amazon... (garage welding )

Is there a shelf life to this filter? I intend to buy more and use what's been left.

Im sure there is but I dont know it...it last longer 2 or 3x as long as pink 2097 filters..I was using it in weld shop with weld fumes . Grinding particles. And spray paint fumes..I had very clean breathable air. With hardly any sneezing

how do you know when it's time for a new filter?

I really couldn't tell you, I am still on my first set of these and after absorbing probably 25 hours of welding fumes I can breathe through them almost as good as new. Only difference is they are really brown looking. They still work fine and can't smell any smoke or odors through them. And the fibers inside the center when you take them off the mask is still pure white so nothing is getting through. I looked as I was afraid they had a hole somewhere, I couldn't believe they lasted this long. They are pretty beat up and floppy too and still filter perfectly. Truly marvelous filters!

How many are included? Two filters or two sets of two filters == four total?

1 set, 2 filters total. Bostonbrand is wrong.

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3M P100 Advanced Respirator Filter 2297, NIOSH Approved, 1 Pair

3M P100 Advanced Respirator Filter 2297, NIOSH Approved, 1 Pair

Product ID: 5411960

Details

Brand
3M
Color
Grey
Filter Class
P100
Number of Items
2
Size
Pack

🔄Bayonet twist-on/off for quick assembly

⚙️3-layer Advanced Electret Filter Media

🛡️NIOSH P100 certified 99.97% filtration

€ 33.17

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Description

🛠️ Gear up with 3M 2297: The filter that works as hard as you do.

SEAMLESS COMPATIBILITY - Twist-on bayonet design fits 3M 5000, 6000, 7000, and FF-400 series respirators for versatile use.
MULTI INDUSTRY ESSENTIAL - Trusted in mining, shipbuilding, abatement, and utilities—protect yourself where it matters most.
BREATHE EASY WORK HARDER - Advanced 3-layer electret media reduces breathing resistance by 30% vs. standard filters—comfort meets efficiency.
BUILT TO LAST READY TO GO - Durable netting construction extends filter life, cutting replacement frequency and downtime.
UNMATCHED PROTECTION PROVEN PERFORMANCE - NIOSH-approved P100 filter blocks 99.97% of oil & non-oil particulates for industrial-grade safety.

The 3M P100 Advanced Respirator Filter 2297 is a NIOSH-approved, reusable particulate filter delivering 99.97% filtration efficiency against oil and non-oil based particles. Featuring a lightweight, 3-layer Advanced Electret Media for easier breathing and rugged netting for durability, it fits a wide range of 3M half and full facepiece respirators via a quick bayonet twist-on design. Ideal for industrial environments like mining, shipbuilding, and abatement, it also offers nuisance-level organic vapor relief, making it a versatile, high-performance choice for professional respiratory protection.

Specifications

ASIN	B009POHH94
Best Sellers Rank	#46,583 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #49 in Respirator Cartridges & Filters
Brand Name	3M
Color	Grey
Customer Reviews	4.8 4.8 out of 5 stars (1,926)
Filter Class	P100
Fit Type	Regular
Global Trade Identification Number	00051131171725
Import Designation	Made in the USA
Included Components	Filters
Item Package Quantity	1
Item Type Name	3M P100 Advanced Respirator Filter 2297, 1 Pair, Helps Protect Against Oil and Non-Oil Based Particulates, Nuisance Level Organic Vapor Relief, Mining, Shipbuilding, Abatement, Utilities
Manufacturer	3M Industrial Market Center
Material	Carbon Fiber
Material Features	Organic
Number of Items	2
Part Number	051131171720
Product Style	Organic Vapor Relief
Recommended Uses For Product	Mining
Reusability	Reusable
Size	Pack
Special Features	Lightweight, Reusable
Style Number	2297
UPC	051131171725
Unit Count	1 Count

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€ 33.17

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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