EN 1822 and ISO 29463
Getting the right HEPA filters for your air purifier is important to ensure safety and protection from environmental hazards. Most people don’t realize that different HEPA filters have different characteristics and can offer different levels of purification to the users. Here the article will consider the EN 1822 factory test conducted to provide the ISO 29463 certification. Usually, the same ISO 29463 determines the different classes of HEPA< EPA and ULPA filters used in different industrial environments. Here, the designations are maintained, but the classes are replaced.
- The Different Filter Groups According to ISO 29463
- The Origins of EN 1822: What Does It Mean?
- The Evolution of the ISO 29463
- Comparison Between EN 1822 and ISO 29463
- What Are the Benefits of ISO 29463?
- Mars Purifier Is Validated for ISO 29463
The Different Filter Groups According to ISO 29463
The EPA Filter or the efficient particulate air filter is denoted by ISO 15 E to ISO 30 E. Similarly, the HEPA Filter or the high-efficiency particulate air filter is denoted by ISO 35 H to ISO 45 H. Finally, the ULPA Filter or the ultra-low penetration air filter is denoted by ISO 50 U to ISO 75 U under the ISO 29463.
The Origins of EN 1822: What Does It Mean?
The EN 1822 is a European Standard that came into the first effect in 1998. It was initially used as a filter classification system for HEPA filters. The main focus here is the filtration process theory that leads to the evaluation criterion commonly known as MPPS or most penetrating particle size. In simple terms, the smallest arrestance particle size of the air filter is known as MPPS, which directly relates to the filtration process’s physical mechanisms.
However, the approach has not been taken directly into account in the US. Instead, HEPA Filters are tested through the MIL-STD-282 system that has been operational since 1956. However, many other test procedures have evolved, including the IEST-RP-CC001 and the IEST-RP-CC007 procedures. Test procedures usually specify a distinct particle size to evaluate the class of the filter.
The Evolution of the ISO 29463
The above situations suggest that there was a dyssynchronization between the way filters are classified in the US and Europe for a long time. To ease the harmonization, the International Organization for Standardization or ISO released the ISO 29463 parts 1-5 in October 2011. Before this point, the ISO 29463 had been coexistent with the separate standards that have been practiced in the US and Europe.
EN 1822-1 was decided to continue in Europe despite the ISO 29463 Part 1-5, but only for performance testing, marking, and classification purposes. The EN 1822-1 had to be revised to maintain its continued existence. The EN 1822 will classify separately, but the testing for the classification will consider Part 2-5 of the ISO 29463. Therefore, it will bring much harmony in the testing method in different nations.
One crucial difference between the testing methods is the leakage test. In ISO 29463:2017 Part 1, five different methods are specified for leakage testing. However, EN 1822 Part 1 maintains only 3 of these methods: scan leak test, oil thread leak test, and efficiency leak test. In most cases, it missed out on the aerosol photometer leak test and PSL leak test.
Comparison Between EN 1822 and ISO 29463
The new ISO standard’s evaluation principles are primarily based on the MPPS principle, just like the EN 1822. However, one significant difference between these standards is that EN 1822 considers any filter with the assistance of 99.9993% to be HEPA filter class H14. On the other hand, ISO standards would classify it differently based on their standards. The H14 method would be considered ULPA ISO 50 U. Also, this standard would mean that the filter would have to pass other leakage test procedures than the HEPA class, which has been specified by EN 1822.
The ISO 29463 also starts with the first group being ISO 15 E, whereas it resonates with only the filter class E11 based on the EN 1822 principles. Therefore, the E10 class, according to the EN 1822, is not covered in ISO 29463.
What Are the Benefits of ISO 29463?
The biggest benefit of ISO 29463 is that it has helped to harmonize how HEPA filters are classified in the US and Europe. Therefore, exporters from both regions can significantly present their products to the other market. Additionally, it also means that repair and servicing of the products can be easier knowing the exact class they belong to. Another major area is price comparison. By knowing the universally acceptable class of the filter, it becomes easier to determine if one firm is offering a lower price than the other firm. Even if the product is classed using the EN 1822 standards, the product’s exact benefits can be determined by considering the equivalent class of the product under the ISO 29463 in most cases.
Another major benefit of the ISO 29463 is the testing of imported equipment. If a producer of air purifiers imports the filter from another area, the filters could be easily tested for their performance based on the class they are given. If the class is higher, it is natural to believe that the standards are also better.
Mars Purifier Is Validated for ISO 29463
Currently, Mars Purifier is a fully ISO 29463 verified air purifier manufacturer. Our firm has passed the Part 5 test method for filter elements that has granted us ISO29463-5-201 which if for high-efficiency filters and filter media that can help remove particles that are in the air around us.
To ensure complete satisfaction of our customers, we make the report available upon request. Currently, we also have samples of a radial pleated filter element that is used in the 4 main purifying fans offered by our firm: Generation S, Generation X, Generation Y and Generation Z. Each of them has been tested for ISO29463-5-2011 which means that a complete range of particle sizes were tested to determine the Most Penetrating Particle Size (MPPS) for the complete filter element to check the flow rate that has been specified by the client. The results were evaluated against the EN 1822-12019, and the samples meet the H13 filter class based on these regulations.
With ISO 29463, considerable improvement has occurred in the classification of air filters. Full report can be requested at firstname.lastname@example.org