3M 9541 KN95 Particulate Respirator, Ear Loop, No Valve

The 3M 9541 KN95 respirator is a genuine 3M flat-fold disposable mask that filters at least 95% of fine non-oil particles. It has no exhalation valve, so air is filtered in both directions, and an added carbon layer gives relief from nuisance levels of organic vapours and odours.

Product overview

The 9541 is the non-valved model in 3M’s flat-fold disposable range. 3M’s user instructions list it as standard size with ear loops, certified to KN95 under GB2626 (the sheet states GB2626-2006). Because there is no valve, exhaled air passes through the filter as well, which suits places where the people around the wearer also need protection. If you work in hot or humid conditions and want cooler breathing, see the 3M 9541V valved version.

Key features and benefits

• ≥95% filtration: captures at least 95% of airborne non-oil particulates.
• Carbon layer: relief from nuisance levels of organic vapours and odours — concentrations below the occupational exposure limit only.
• No exhalation valve: filters inhaled and exhaled air, unlike valved models.
• Ear-loop design: standard size, quick to put on and take off.
• Adjustable nose clip: soft foam and a metal clip seal around the nose to reduce leakage.

Main industries and applications

• Construction & renovation: cement and mineral dust.
• Manufacturing & woodworking: sanding, cutting and sweeping tasks.
• Light chemical handling: where odours are noticeable but stay below the exposure limit.
• Food, service & light industry: settings where exhaled air should also be filtered.

Technical specifications

Attribute	Specification
Model	3M 9541
Type	Flat-fold disposable particulate respirator, no valve
Standard	KN95 to GB2626 (3M user instructions: GB2626-2006)
Filtration	≥95% non-oil particulates
Carbon layer	Yes — nuisance-level organic vapour and odour relief
Valve	None
Strap style	Ear loop, standard size
Brand / Origin	3M

Why buy from Techmaster Electronics

Techmaster Electronics is an authorised supplier of 3M personal protective equipment in Vietnam. We supply genuine 3M respirators, advise on the right protection level for your work, and provide dependable after-sales support. Contact Techmaster for a free consultation and a quotation.

Frequently asked questions

What does the 3M 9541 protect against?

It filters at least 95% of fine non-oil airborne particles such as dust and mist, and its carbon layer reduces odours and organic vapours at nuisance levels. It is not protection against gases or against vapours at or above the occupational exposure limit.

Does the 9541 have an exhalation valve?

No. The 9541 is the non-valved model; the 3M 9541V is the same mask with a Cool Flow valve.

Can I use it for solvent work?

No. Once organic vapour concentrations reach the occupational exposure limit, a disposable particulate respirator is no longer suitable — use a half facepiece with organic vapour cartridges instead.

Is it reusable?

No. Like other disposable respirators it is intended for single-shift use and should be discarded when soiled, damaged, or when breathing becomes difficult.