{"id":19420,"date":"2022-01-12T21:51:44","date_gmt":"2022-01-12T20:51:44","guid":{"rendered":"https:\/\/secureair.it\/aspiratore-fumi-di-saldatura-chiarezza-su-filtrazione-hepa\/"},"modified":"2023-06-20T12:55:41","modified_gmt":"2023-06-20T10:55:41","slug":"welding-fume-extractor-the-importance-of-hepa-filtration","status":"publish","type":"post","link":"https:\/\/www.secureair.it\/en\/welding-fume-extractor-the-importance-of-hepa-filtration\/","title":{"rendered":"Welding fume extractor: the importance of HEPA filtration"},"content":{"rendered":"<p>Even if the <strong>welding fume extractor<\/strong> is an apparently simple and low-tech equipment, the most recent developments from a legislation point of view regarding air filtration for the protection of operators, have sensitized companies towards a more thorough research, destined both for the latest generation of <strong>mobile fume extractors<\/strong> and for smoke aspiration systems equipped with filtration for reintegration or emission into the atmosphere.<\/p>\n<p>Most of the <strong>welding fume extractors<\/strong>, especially in version <strong>mobile or trailer-mounted<\/strong>, however, they are still produced with obsolete filtration efficiencies <strong>like the old F9<\/strong>, we therefore advise you to start by: <strong><em>always checking and asking for the final grade of filtering efficiency of the product.<\/em><\/strong> You don\u2019t know what it is about? Great, this article is for you!<\/p>\n<h3>A little clarity on filtration efficiencies of filter systems<\/h3>\n<p>From a legislation point of view, it is important to remember that <strong>since 2017 ISO 16890:2017 has been introduced<\/strong> and the filters will no longer be divided into Coarse efficiency classes (C), Medium (M) or Fine (F) as in the past, but they have been divided into 4 filtration classes, according to the <strong>particle size or particulate matter<\/strong>:<\/p>\n<ul>\n<li>ISO Coarse<\/li>\n<li>ISO ePM10 (10 \u00b5m, it stops at the upper respiratory tract)<\/li>\n<li>ISO ePM2,5\u00a0 (2,5\u00a0 \u00b5m, it stops at the lower respiratory tract)<\/li>\n<li>ISO ePM1 ( 1\u00a0 \u00b5m, it comes directly into the alveoli)<\/li>\n<\/ul>\n<p>This new distinction came about as a result of joint studies by the scientific and medical community and by the WHO (World Health Organization), which together found and confirmed the increasing danger to human health caused by <strong>particles less than 1 micron in the air<\/strong>, in our case especially in the production areas of carpentry, workshops and industrial contexts.<\/p>\n<h3>Why it is important to know the particle size of fumes and dust in the workshop<\/h3>\n<p>Often companies and operators before choosing a <strong>welding fume extractor<\/strong>, underestimate the problem of the size of particles and fumes, because they &#8220;see&#8221; little and <strong>do not remain deposited at the end of the day; nothing more wrong,<\/strong> because you should be aware that the fumes from metallurgical processing range from a maximum size of 100\u00b5m (1\/10 mm) up to the minimum of 0.01 \u00b5m, as can be seen from the table below. This means that all filters with efficiency lower than ISO ePM1 are not able to stop welding fumes, remember that!<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-15322\" src=\"https:\/\/www.secureair.it\/wp-content\/uploads\/2022\/01\/tabellafumipolveri_secureair.png\" alt=\"\" width=\"500\" height=\"300\" srcset=\"https:\/\/www.secureair.it\/wp-content\/uploads\/2022\/01\/tabellafumipolveri_secureair.png 500w, https:\/\/www.secureair.it\/wp-content\/uploads\/2022\/01\/tabellafumipolveri_secureair-300x180.png 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<h3>But which filters are suitable for particles with dimensions of 0.1\u00b5m? HEPA filters of course<\/h3>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 50%;\">Once mainly used for ventilation and air conditioning systems, HEPA filters have reached for some time a technical and economic maturity thanks to which they can be successfully used for the filtration of fumes and fine dust.<\/p>\n<p>We at secureair.it have been the first to use high efficiency filters for many of our products and we are proud to offer HEPA technology especially to serve the latest welding fume extractors of the MFU series, thanks to which operators are guaranteed 99.99% filtration of fine dust with a size of 0.3\u00b5m.<\/p>\n<p>Really not bad for those who spend the day in the workshop!!<\/td>\n<td style=\"width: 50%; text-align: center;\"><a href=\"https:\/\/secureair.it\/en\/?post_type=product&amp;p=19214\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-15325\" src=\"https:\/\/www.secureair.it\/wp-content\/uploads\/2022\/01\/ricambioH13_MFU-HW.jpeg\" alt=\"filtro HEPA fumi saldatura\" width=\"500\" height=\"500\" srcset=\"https:\/\/www.secureair.it\/wp-content\/uploads\/2022\/01\/ricambioH13_MFU-HW.jpeg 500w, https:\/\/www.secureair.it\/wp-content\/uploads\/2022\/01\/ricambioH13_MFU-HW-300x300.jpeg 300w, https:\/\/www.secureair.it\/wp-content\/uploads\/2022\/01\/ricambioH13_MFU-HW-150x150.jpeg 150w, https:\/\/www.secureair.it\/wp-content\/uploads\/2022\/01\/ricambioH13_MFU-HW-100x100.jpeg 100w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>So what are you waiting for? Check out our range of mobile welding fume extractors with HEPA technology:<\/p>\n<ul>\n<li><a href=\"https:\/\/secureair.it\/categoria-prodotto\/aspiratori-fumi\/\" target=\"_blank\" rel=\"noopener noreferrer\">MFU mobile filtration unit<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Even if the welding fume extractor is an apparently simple and low-tech equipment, the most recent developments from a legislation point of view regarding air filtration for the protection of operators, have sensitized companies towards a more thorough research, destined both for the latest generation of mobile fume extractors and for smoke aspiration systems equipped [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":15358,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[802,129,18],"tags":[828,3321,826,809,132,833,818],"class_list":["post-19420","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technique","category-legislations","category-news","tag-fine-dust","tag-fume-extractor","tag-legislation-en","tag-mobile-extractor","tag-mobile-purifiers","tag-safety-at-work","tag-welding-fumes"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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