HEPA Filters Why are these filters so effective in treating air?
Considered as one of the most effective industrial filters in the Air Treatment category, especially in industries, the HEPA filters are also known by the name of ABSOLUTE HEPA Filters.
From the acronym in English High Eefficiency Particulate Ago, these filters are called absolute, precisely because they have a particle capture system that provides absolute efficiency in the filtering aspect.
Equipped with an excellent capture system, these filters are mainly indicated in places where there is a need for a high degree of air purity. And what makes these filters capable of retaining tiny particles is their structural system.
Let’s understand how this filter works…
Organization
Absolute Filters are manufactured in galvanized sheet metal, aluminum or stainless steel frames that have EPDM, silicone, gel or knife seals.
But what makes these filters so effectively filter the air, and makes them one of the most used in various segments, is their filter medium.
In this device, the filter papers are composed of glass microfiber in pleated form with narrow creases, shallow depth and with different degrees of filtration.
It is this fiber mesh that guarantees absolute filtration, as they stop microparticles of airborne contaminants down to 0,3 µm.
Micron is a unit of length in the international system of units, or unit of measurement system. They are very small particles, certainly invisible to the naked eye.
1 micron = 1/1000000 of a meter. Or in other words, it is the millionth part of a meter.
HEPA filter
Absolute filters are so efficient, precisely because they are able to capture these micro particles.
Its degree of efficiency is so high that this filter stops 99,9995% of the impurities in the air. In other words, its degree of penetration is very low, being only 0,0005%.
What do filters capture?
- Dust particles, fibers
- Suspended gases and aerosols
- Mites, viruses and bacteria
How important are these filters in environments?
There are some places that are regulated by ANVISA – National Health Surveillance Agency, and ABNT to follow strict standards related to cleanliness. This also includes the degree of purity of the air.
In industrial environments such as: Pharmaceutical Industries, Food Industries, Laboratories, Clinics, Hospitals, Medicines Packaging Industry, among others… Raw materials, health products and consumer items that require specific care are handled, both for the protection of workers and equally for the protection of the product itself.
In places such as Clean Rooms and Classified Environments, filters are a fundamental part of the security system, as they are the ones who will guarantee the purity of the air through filtration. Thus preventing contaminants from spreading and causing damage to people's health, or even environmental contamination.
Within the variables controlled in environments like these are:
- Air Quality Control
- Controlling Relative Air Humidity
- Room temperature
Os Hepa filters are considered as one of the safest and most efficient filters, and are used both in air conditioning equipment and air purifiers, as well as in exhaust and ventilation systems.
What is the difference between Hepa Filters H13 and H14
The terms H13 and H14 refer to the Filter Filtration Class.
While the H13 Filter has an efficiency (EN 1822) of 99,98% and an initial pressure drop (Pa) of 115, the H14 Filter has a slightly higher rating, with an efficiency (EN 1822) of 99,998% and pressure drop. starting point (Pa) of 120.
Linter manufactures Absolute HEPA Filters in the models Plano e Cunha (Dihedron).
They are safe and efficient products, with the guarantee of those who have been supplying for 24 years. Filter e Equipment for Air Treatment in several sectors of the industry.
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