Is a HEPA filter M class?

What is an M class filter?

M Class – for hard woods, board materials, concrete and brick dust. … H Class dust extractors include all the features you find with M Class units, but also offer greater suction and filtration figures, even down to the way the bag is removed from the machine to avoid particles going back into the air.

What does dust Class M mean?

Dust class M: All wood dust and dust originating from repair compound, filler and clear coats, plaster, cement, concrete, tile cement and paints such as latex and oil paints or quartziferous materials such as sand and pebbles.

What is a HEPA 13 filter?

What is the H13 HEPA Filter? The H13 HEPA filter is a medical-grade air filter that can remove all particles of 0.21 microns and larger with 99.95% efficiency. Common consumer air purifiers use H11 and H12 standard HEPA filters, which can trap 0.3-micron particles at 85% to 95% efficiency.

What is a HEPA rating?

HEPA is a type of pleated mechanical air filter. It is an acronym for “high efficiency particulate air [filter]” (as officially defined by the U.S. Dept. of Energy). … Using the worst case particle size results in the worst case efficiency rating (i.e. 99.97% or better for all particle sizes).

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Is M class or L class better?

Most customers tend to go for the L Class extractors, as they are suitable for most applications and provide better value. M Class is better suited for applications using hazardous materials that require a greater level of filtration.

Is a Henry Hoover M class?

Talking vacuums, for any construction process producing dust, the minimum standard is ‘M class’, which means a medium level of protection. … Standard site vacuums, such as ‘Henry hoovers’, aren’t rated and won’t filter enough dust to meet regulations. Increasingly sites are adopting M class vacuums as standard.

What is H class dust extractor?

H-Class Extractors mean ‘High Hazards’ and are usually used for higher hazardous dusts which pose a more serious health risk, like carcinogenic dusts such as lead, carbon, tar, nickel, cobalt, copper and cadmium.

What are the classes of vacuums?

Dust types are categorised into three classes; L Class (low risk), M Class (medium risk) and H Class (high risk).

What is L class extraction?

L-Class mean ‘Light Hazards‘ and this type of extractor should be used for mixed/lower toxicity dusts, for example when working with soft woods and solid surface material such as Corian. The filter leakage (as a % of collected dust) is less than 1% with maximum allowable concentrations (MAC) > 1 mg/m³.