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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.

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

General
Material	Polypropylene	Series Name	Respirator
Package Quantity	5	Manufacturer Color/Finish	White
Type	Valved respirator

Dimensions
Size	One size fits most

Features
Filters Asbestos	No	Filters Paint Odors	No
Filters Lead	No	For Use with Painting Projects	No
Multi-Purpose	Yes	For Use with Sanding Projects	Yes
Disposable/Reusable	Disposable	For Use with Groundskeeping Projects	Yes
Filters Dust	Yes	For Use with Cleaning Projects	No
Filters Allergens	Yes	For Use with Abatement Projects	No
Filters Fiberglass	Yes	Filter Included	No
Filters Gas & Vapor	No	Chemical Rating	N95
Filters Mold	No	Adjustable Strap	Yes
Filters Solvent	No	Lowe's Exclusive	No

Certifications
CA Residents: Prop 65 Warning(s)	No

Warranty
Warranty	None

Compatibility
For Use with Woodworking Projects	Yes

Miscellaneous
UNSPSC	46182000

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Review

4.6 out of 5

756 Reviews

92% Recommend this product

Ratings may include incentivized customer reviews.

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What Customers Are Saying

Customers overwhelmingly praise these masks for exceptional filtration and comfortable fit. Most highlight effective protection against dust, particles, and allergens during sanding, painting, and insulation work. The exhalation valve is frequently noted for eliminating fogging on glasses and improving airflow, while the snug seal accommodates various face shapes. Reviewers consistently commend easy breathing and appreciate the affordable price point. A few mention head-strap discomfort or occasional quality issues, but these concerns are vastly outweighed by positive feedback. Overall, customers consider these masks highly effective and reliable for demanding tasks.

Customer review summary generated by AI, including incentivized reviews.

756 Customer Reviews

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didn't recieve

Would Not Recommend

5 years ago I moved I have tried repetitively to delete the old one and have re added the new one 7 times. We know we have to watch it only it happenes anyway.

5yearsWrongAddressAugust 19, 2026
From White N95 Multi-Purpose Valved Respirator 2 -Pack Verified Purchaser

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Response from 3M Social Care

Thank you for sharing your feedback. We're sorry to hear about the delivery and address update issue with your order. For assistance with order d...

3M Social CareAugust 20, 2026

3m-country-catalog

Worked well!

These fit well and worked as expected. I didn't notice any dust getting in.

EricAugust 2, 2026
From White N95 Multi-Purpose Valved Respirator 2 -Pack Verified Purchaser

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		Name	Current Item 3MRespirator White N95 Multi-Purpose Valved Respirator 5 -Pack
		Ratings	756
		Type	Valved respirator
		Material	Polypropylene
		Chemical Rating	N95
3MGrey P95 Multi-Purpose Half Face Respirator	3MWhite N95 Multi-Purpose Valved Respirator 10 -Pack	3MWhite P100 Medium Multi-Purpose Half Face Respirator	Klein ToolsP100 Half-Mask Respirator, M/L	3MOV Grey P100 Multi-Purpose Half Face Respirator	3MWhite N95 Multi-Purpose Valved Respirator 10 -Pack	3MWhite N95 Multi-Purpose Non-Valved Respirator 10 -Pack	3MWhite N95 Multi-Purpose Non-Valved Respirator 20 -Pack	3MMulti-Purpose Performance Respirator Grey P100 Multi-Purpose Half Face Respirator
39	43	130	105	189	107	124	30	79
Half face respirator	Valved respirator	Half face respirator	Half face respirator	Half face respirator	Valved respirator	Non-valved respirator	Non-valved respirator	Half face respirator
Rubber	Polyester	Rubber	Rubber	Rubber	Polyester	Polypropylene	Polyester	Polypropylene
P95	N95	P100	P100	P100	N95	N95	N95	P100