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Different Types of Dust Masks

Dust Masks are designed to protect the wearer against inhaling airborne particulates. Airborne particulates are solids or liquids suspended in breathable air and can be classified as dusts, mists or fume. Inhaling airborne particulates may have an inverse effect on health and, depending on the particulate inhaled, this effect may be irreversible.

There are three main different type of dust masks which are governed by the European standard EN149:2001+A1:2009 (Respiratory protective devices. Filtering half masks to protect against particles. Requirements, testing, marking) - this covers FFP dusts masks and their three ratings; FFP1, FFP2 and FFP3. Each different dust mask rating is a step up giving greater protection.

FFP1 Dust Masks

FFP1 dust masks give the minimum level of protection against non-toxic particulates however this may be perfectly acceptable depending on the airborne hazard. As they are composed of the least amount of filter material they also provide the least breathing resistance and quite often an exhalation valve is not required.

FFP1 dust mask protection examples: brick dust, cellulose, cement, coal dust, gypsum, limestone, Plaster of Paris, pollen, sugar.

 

FFP2 Dust Masks

FFP2 dust masks offer a moderate level of protection against hazardous mists and particulates and fume. Exhalation valves are more common in this rating of mask as there is greater breathing resistance. Some FFP2 dust masks have an activated charcoal layer to protect against ozone and these are often called welding dust masks.

FFP2 dust mask protection examples: brake dust, cotton dust, granite dust, hay, lead dust and fume, softwood dust.

 

FFP3 Dust Masks

FFP3 dust masks provide the highest level of protection that a disposable mask can offer. A well fitting FFP3 mask will protect against fine toxic particulates including asbestos, bacteria, viruses and radioactive particles. Due to the thickness of the filter material an exhalation valve is almost always fitted.

FFP3 dust mask protection examples: viruses, bacteria, radioactive dusts, asbestos.

 

Different Dust Masks FFP Protection Levels

Protection level WEL* Micron Size Filter penetration limit (at 95 L/min air flow Inward Leakage Hazard Type
FFP1 4 >5 Filters at least 80% of airborne particles <22% Non toxic dusts and water/oil based mists/aerosols.
FFP2 10 2 - 5 Filters at least 94% of airborne particles <8% Toxic dusts, metal fumes and water/oil based mists/aerosols.
FFP3 20 Less than 2 Filters at least 99% of airborne particles <2% Toxic and carcinogenic dusts, metal fumes and water/oil based mists/aerosols.
  *Workplace Exposure Limit

Nuisance Dust Masks

Comfort or Nuisance dust masks have no official FFP rating and should not be considered as full respiratory protective equipment.

We hope the above guide to the different type of dust masks helps you to make the right choice when choosing your dust mask. This information is correct at the time of writing, but the legislation around respiratory protection is updated from time to time, to get advice about your specific requirements please call our team on 01842 765634 or email sales@dustmasksdirect.co.uk.