Class H vacuum cleaner

Class H vacuum cleaner: characteristics and area of use

Appropriate personal asbestos protection is essential.

Professional Class H vacuum cleaner brands

Nilfisk Class H Vacuum Cleaner

The strengths of Nilfisk Attix Class H

Numatic Class H Vacuum Cleaner

Procedure for the DOP TEST

1. The vacuum cleaner equipped with the HEPA filter to be tested is positioned inside the test chamber. 2. Once the vacuum cleaner is connected and switched on, the test chamber is sealed.
3. At the other end of the test chain, a Sodium Chloride solution is sprayed at approximately 7 bars in aerosol form.
4. The tiny droplets will, through the suction of the device, gradually move towards the test chamber.
5. During passage through the long tube, the mist formed of Sodium Chloride will dry out to leave only sodium chloride crystals of 0.3µ in diameter.
6. At the heart of this test is a hydrogen flame photometer which allows testing of the air circulating during the operation.
7. By measuring the concentration of Sodium Chloride crystals present in the air sucked in and expelled by the vacuum cleaner, an exact calculation of the filtration level of the device is carried out.
8. Each result is individually recorded on a test certificate that validates a filtration level for particles of 0.3µm at over 99.995%. This certificate of conformity is attached to the tested device.

Frequently asked questions about class H vacuum cleaners

What is a class H vacuum cleaner?

Class H vacuum cleaners belong to the category of industrial vacuum cleaners, designed to vacuum dust and debris that pose a high health risk. They are classified according to their ability to filter the finest particles, based on strict European standards. Class H corresponds to the highest level of filtration, with a minimum efficiency of 99.995% for particles smaller than 1 micron.

What types of dust can a class H vacuum cleaner pick up?

Class H vacuum cleaners are specially designed to vacuum up the finest and most dangerous dust particles, such as:
• Carcinogenic dust (asbestos, lead, etc.)
• Mold spores
• Mineral fibers
• Very small particles (flour dust, etc.)
They are therefore essential for work involving the handling of hazardous materials , such as asbestos removal, interventions in hospital settings or milling activities.

What are the standards for class H vacuum cleaners?

Class H vacuum cleaners must meet very strict regulatory requirements, defined at the European level. In particular, they must comply with the following standards:
• EN 60335-2-69 standard: Safety specifications for industrial and domestic vacuum cleaners for the extraction of hazardous dust
• EN 1822 standard: Very high efficiency air filters (EPA, HEPA and ULPA)
These standards govern filtration performance, safety of use and verification tests to be carried out on these devices.

What maintenance is required for a class H vacuum cleaner?

Regular maintenance of a Class H vacuum cleaner is essential to preserve its performance and safe operation. Here are the main steps to follow:
1. Empty the waste collection tank after each use
2. Clean the filters according to the manufacturer's recommendations (usually every 6 months)
3. Check for damage to the hoses, nozzles and other accessories
4. Perform periodic safety checks (leak test, airflow check, etc.)
5. Follow the manufacturer's recommendations regarding maintenance and parts replacement
Neglected maintenance can lead to a decrease in filtration efficiency, or even risks of dust dispersal.