Professional Dust Extraction and Solid-Liquid Vacuum Cleaners

Health First: Filtration Classes L, M, and H

Not all dust is the same. Choosing the correct filtration class is a legal requirement on many construction sites and a health concern:

• Class L (Low): Standard filtration (99% efficiency). Ideal for household dust, light dirt, and chalk.
• Class M (Medium): (99.9% efficiency). Mandatory for vacuuming hardwood, metal, concrete, and paint dust. It is the most common professional choice.
• Class H (High): (99.995% effective). For highly carcinogenic dust (asbestos, pathogenic molds). For specialized uses and requires trained operators.

Features that make the difference in the workshop

• Automatic Filter Shaker: In professional models, the filter cleans itself (by vibrating or reversing the air flow) every time you turn off the machine or when the suction power drops.
• Synchronized Start (Auto-Start): Connect the grinder to the vacuum cleaner. Turn on the tool, and the vacuum cleaner starts automatically. Turn off the tool, and the vacuum cleaner switches off with a delay. Essential for maximum cleanliness.

Frequently Asked Questions (FAQ)

1. Can I vacuum water with all the bins?
Only with "Wet & Dry" models (solid and liquid). Remember to remove the dust bag and, depending on the model, insert the foam filter before vacuuming liquids. Otherwise, the water will destroy the paper filter.

2. Do I always have to use the bag?
It's recommended. Using a bag (fleece or nonwoven fabric) makes it easier to dispose of fine dust (especially harmful dust), protects the main filter, and maintains consistent suction power. Plain paper bags are fine for larger debris.

3. What is a HEPA filter?
HEPA (High Efficiency Particulate Air) is a type of filter that traps very fine particles (such as dust mites, spores, and bacteria) with extremely high efficiency. It's essential for allergy sufferers or those who work in sterile environments.