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What Is an H Class Vacuum Cleaner? Explained!

Published by: Katherine Frame

What Is an H Class Vacuum Cleaner

Are you thinking of purchasing a new vacuum cleaner to support your daily cleaning needs? If so, then you must ensure that you’ll purchase only the best one! 

Speaking of the best one, it refers only to the H Class Vacuum Cleaner. Have you heard or seen one before? If not yet, then this is the perfect opportunity for you to discover the wonders and benefits being provided by an H Class Vacuum Cleaner! 

Here, we are also going to know how this vacuum cleaner works to provide ease in your daily cleaning sessions. So, without further ado, let’s start! 

What does Dust Class H mean?

To start, dust class H refers to the classification of both extraction systems and filters. In this class, the filters are great for small particles such as dust, and it works effectively compared to others.

There are also classes divided into three groups for the dust in this class, and these are the L, M, and H. L stands for coarse-grained, slightly finer for M, and finest dust for H. 

Moreover, here are the perfect areas intended for each class, as well as the fielding. 

Dust ClassesBest forFielding
LCoarse-grained- slightly hazardous dustPollen, mite, lime, gypsum, sand, house dust, and other allergenic substancesHousehold
MSlightly finer- medium hazardous dustMetal dust, wood dust, paint residuesSmall businesses
HFinest dust- highly hazardous dustCarcinogenic substances- mineral fibers, lead dust, mold sporesBig companies with the highest security and filtration

Furthermore, the dust class H requires to be regularly checked and maintained yearly by a skilled operator to avoid any exceeding occupational exposure that is legally prescribed.

In case of the appearance of hazardous dust, the employees’ protection must depend on the air velocity measurement in pipes, hoses, detection elements, and dust-free filter disposal. 

So, safety vacuum cleaners need to comply with dust class H and then draw in asbestos dust.

For example, in Germany, the vacuum cleaners used are required to fulfill the requirements needed. This will legalize and authorize it to be utilized as special vacuum cleaners that can surpass any flammable and explosive dust. Compared to the dust class L and M, H is the best. 

What is a H Class Vacuum Cleaner?

Moving on, the H Class Vacuum Cleaner is where the dust class H is applied for better cleaning and dusting performances. This vacuum cleaner guarantees enough dusting power to ensure that any highly hazardous dust is eliminated.

Not just that, it also ensures that big companies can have an employee-friendly and safe environment to work with.

It is necessary to keep in mind that an H Class Vacuum Cleaner has its perfect place to be utilized: big companies that produce highly hazardous dust and other particles. Mostly, these big companies have mineral fibers and lead dust as the primary dirt. 

Moreover, this vacuum cleaner is powered and designed for highly hazardous dust. That’s why using it for the household is restricted. It has powerful dusting procedures to ensure that there will be a clean and safe environment for everyone. 

How to Use Class H Vacuum Cleaner for Asbestos?

As of this moment, you are now going to know how an H Class Vacuum Cleaner is used for asbestos. But before that, let us first define the word asbestos. 


Asbestos refers to the fibrous silicate mineral that occurs naturally. It has six types comprised of thin and log fibrous crystals wherein each fibre has microscopic fibrils, compatible to be released to processes and the atmosphere through abrasion. 

Below are the things to know about using an H Class Vacuum Cleaner for asbestos. 


  • First things first, you need to have a class h vacuum cleaner that is in its best condition. If there’s none, then you can easily hire a service provider; you only need to type asbestos safety equipment hire. This works all the time! 
  • Then, you now need to ensure that the hired vacuum cleaners are in good working order and are clean. This will ensure that the whole procedure will be accomplished smoothly. 
  • Next, the hiring company needs to examine and thoroughly test each of the cleaners. This must be done at least every six months. This will also need to have a valid certificate. Remember, this is a British standard. 
  • Then, you need to ensure that the type of h class vacuum cleaner is suitable to the type of your area’s dust removal. You can choose from the dry and wet. This vacuum cleaner is still the best, even if there is water that needs to be removed. However, most of the time, a normal h class vacuum can also be utilized to remove wetted materials or moist but not water. 
  • Lastly, if you are going to do the procedure yourself, you need to arrange and prepare for a few examinations and certificates. Contact the supplier for an easier transaction. 

Vacuuming Procedure 

  • Before using it, you need to check the whole vacuum first to ensure that there are no commodities. Also, it can provide powerful suction to accomplish the cleaning quickly. 
  • Check if the vacuum is activated when it is fitted with low-flow indicators. 
  • Read and follow the operating procedures. 
  • Pick up huge debris before it gets stuck in the vacuum. 
  • Use the vacuum with care and safety to avoid disturbing the asbestos fibres and making it easy to be breathed in. 
  • Use the adjustable floor attachment for the floor, fabrics, and carpets.
  • Use the tapered attachment for small areas. 
  • Use the flat attachment to clean solid surfaces such as tabletops. 
  • Check the vacuum every after use for any damage. 

Moreover, using this vacuum for asbestos control can also be done through shadow vacuuming. This way, the nozzle is held close to the task. On the other hand, it can also be done through the local dust extraction, where the tool is enclosed using a drill cowl and nozzle attachment at the cutting point. 

However, there are potential problems to be met in using the vacuum for asbestos. One of those is the reduced suction, wherein it is caused by: full water container, blocked hose, and too long extension cable. 

What are the different classes of vacuum cleaners?

As previously mentioned, vacuum cleaners have three different classes: L, M, and H. 

L is designed for slightly hazardous dust that is mostly found in a household. It can clean common house dust to ensure that there will be a breathable environment for the family. 

Next, M is for the medium hazardous dust that is found in small businesses and companies. It cleans dust such as metal and wood. 

Lastly, the H is designed for highly hazardous dust. These clouds of dust are mostly found inside factories, junk shops, and others as long as it produces metal dust, lead, and mold spores. 

These are the specks of dust that bring toxic air to people that’s why eliminating it immediately with H class vacuum cleaner is a must. 


Thus, an H Class Vacuum Cleaner is designed to eliminate highly hazardous dust found most of the time within huge companies with the presence of metal dust, mold spores, lead dust, and other toxic wastes.

This vacuum cleaner is not intended for the household and even a small company. It has its own area of work, procedures, and utility that needs extra care and attention. 


Is the HEPA filter H class?

No, the HEPA filter is not H class as it stands for high-efficiency particulate air. It is a filter intended to be used mostly for a household. On the other side, the H class is for highly hazardous dust. The only similarity between these two is that both uphold efficiency when it comes to vacuum cleaning.

What vacuum cleaners do professionals use?

The type of vacuum cleaner used by professionals is not in uniform. It depends on the need and situation of an area that needs to be vacuum cleaned. The only sure thing is that professionals ensure that they have each type and class and vacuum cleaners to meet cleaning needs.

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Article by:

Katherine Frame

Katherine Frame is a professional writer and reviewer who worked in higher education for eight years before working on The Hardware Hub. She has written for multiple home magazines and blogs.

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