9 Key Differences Between M Class and L Class dust extractor

I am obsessed with cleaning; it has been therapeutic on several occasions. I have many tools that help me with my cleaning activities. However, my absolute favourite is the dust extractor. There are commonly two types of dust extractors that you can find in the market: M-class and L-class dust extractors. By now, I am sure you won’t be surprised if I tell you I own both types. Not just because I love buying cleaning tools (That is, however, one of the reasons) but also because I didn’t know much about the same earlier. It is very important to understand the difference between M and I class dust extractors as it is directly related to your requirements. I was not well aware of the fact and ended up buying both in an interval of time. However, after using both for a while, I now know the core of both types. Therefore, to help you avoid the same mistake as mine, I am here to answer the widely asked question: What is the difference between m class and l class dust extractor?

Key Differences between M Class and L Class Dust Extractors:

M Class Dust ExtractorsL Class Dust Extractors
Filtration EfficiencyHighLower
Particle Size HandlingHandles Fine Dust and Hazardous Materials (e.g., Silica, Asbestos)Handles Coarser Dust and Debris
Compliance with RegulationsComplies with More Stringent Health and Safety RegulationsComplies with Basic Health and Safety Regulations
Legal RequirementsMandatory for Certain Industries and ApplicationsNot Mandatory, but Recommended for Improved Safety
CostHigher Cost due to Advanced Filtration SystemsLower Cost due to Simplified Filtration Systems
ApplicationsIndustries with Higher Health and Safety Standards (e.g., Construction, Woodworking, Asbestos Removal)General Industrial Applications with Lower Risk Factors
Dust Collection CapacityLarger Capacity for Extended UseSmaller Capacity, Requires Frequent Emptying
Noise LevelGenerally Higher (around 70 dB)Generally Lower (around 64 dB)
PortabilityCan be Heavy and Less PortableLightweight and Portable Options Available

Well, now let us move to level 2 and discuss M-class and I-class dust extractors in detail, along with their pros and cons.

MClass Dust Extractors: Starting with the M-class dust extractor when I purchased it first. I was excited and impressed with its performance during the first few days. It had all that I could ask for, the capturing of tiny dust particles and materials like silica or asbestos; I was all flattered. Besides, it came with high-quality filters with a higher efficiency rating, adding the cherry to my cake. 

Let me tell you, it can be an ideal pick for you if you have a large workshop, as such types of machines have larger dust collection capacities. You can keep cleaning without worrying about emptying the collector again and again. 

But, soon enough, I understood that M-class dust extractors are best for use at construction sites, wood workshops, and other industries. My small cleaning area was not its happy place as it was made for performing tougher jobs.


  • Capture and contain fine dust particles, including hazardous materials, for better air quality.
  • Meets stricter industry health and safety regulations.
  • Larger dust collection capacities, reducing emptying and extending operation.
  • Ideal for industries with silica or asbestos.
  • Reduces airborne contaminants’ health risks by capturing fine dust and hazardous materials.


  • M Class dust extractors are more expensive.
  • Less portable due to larger size and heavier construction.

L-Class Dust Extractors: The second one that I brought was an L-class dust extractor. While trying it out for the first few weeks, I realised how different it was from the prior one. L-class dust extractors have a filtration system that can handle coarser dust and debris easily.

L Class Dust extractor

Although I have to admit that the filtration of the L-class is not as efficient as M-class, it is pretty good. I noticed that while M-class was too much for my little space, the L-class was exactly what I wanted for my maintenance activities.


  • Improves workplace cleanliness and reduces respiratory issues.
  • L Class dust extractors are cheaper.
  • Ideal for general industrial use.
  • L Class dust extractors are Lightweight and compact.


  • Not ideal for industries with stringent requirements.
  • Smaller dust collection capacities.

After using both the variants myself and thoroughly comparing M-class and L-class dust extractors, it is clear that both are made for different purposes. They are different from each other in many ways, as I have discussed in this article already. However, M-class and L-class dust extractors are both efficient in their ways.

My suggestion would be to understand your needs and regulations before buying one. Also, from my personal experience, I can say that don’t make the mistake of overlooking filtration efficiency, legal requirements, cost, and application fit. They are important too. 

Also read,

Best Dust Extractor For Small Workshop in the UK

Isabella Williams

Isabella Williams

Isabella Williams is a brilliant carpenter and construction specialist. She writes detailed and fair tool reviews and practical project advice at The Readers Time.

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