It should cover True HEPA filter at least 99.97% of particles by one-third of micron. Most allergens in between 0.8 and 24 small-sized or even smaller than disturbing. These particles are very small, even a human hair is about 100 microns thick in comparison.
Small particles can easily reach the deepest depths of the lungs and cause a variety of adverse health effects such as aggravation of asthma, acute respiratory symptoms including aggravated coughing and pain or difficulty in breathing, eye / nose / throat irritation, respiratory system and chronic bronchitis, decreased lung function, wheezing, and lung cancer.
True HEPA filter should not be confused with such descriptions as traps 100% dust mites, pollen from ragweed and common.
Mites, on average 125 microns cause allergic reactions, but is part of an allergen in their feces.
True HEPA vacuum must meet several stringent requirements: The machine must be sealed and the filter HEPA DOP test a minimum performance filters.
Using a sealed vacuum sealing air leakage flow between the engine and seal the fuel tank of the CAP. If the gap is not sealed, and a HEPA filter is added, then the air flow on the path of least resistance, the gap between the components and not through the thick filter HEPA.
Testing DOP, which is a cloud diameter of 0.3 micro-particles in the suction side of the filter under test. To pass this test does not exceed 0.03% of the particles observed leaking through the exhaust filter.
The effectiveness of HEPA is defined as the percentage of particles whose size is expected to be trapped in the filter HEPA, and not exhausted.
To make sure that is a true HEPA vacuum to protect you, your family and your guests that you are looking for a vacuum sealed and DOP tested at least 99.97% efficiency 0,3 Pickups.
An excellent choice for a HEPA vacuum cleaner true model is Euroclean UZ934-H.
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