{"id":6150,"date":"2025-06-15T11:39:04","date_gmt":"2025-06-15T11:39:04","guid":{"rendered":"https:\/\/ingenic.es\/?p=6150"},"modified":"2026-08-04T16:05:10","modified_gmt":"2026-08-04T16:05:10","slug":"iso-14644-classification-in-white-rooms","status":"publish","type":"post","link":"https:\/\/ingenic.es\/en\/iso-14644-classification-in-white-rooms\/","title":{"rendered":"ISO 14644 classification in white rooms"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">ISO 14644 classification in white rooms: technical reference guide<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>ISO 14644<\/strong> standard is the international reference that defines how white rooms are classified based on the concentration of airborne particles. This standard is key to ensuring that critical processes \u2014 such as pharmaceutical manufacturing, <strong><a href=\"https:\/\/ingenic.es\/en\/biotechnological\/\" data-type=\"page\" data-id=\"5902\">biotechnological<\/a><\/strong> research, or microelectronics production \u2014 take place in controlled, safe environments.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here we offer a technical reference <strong>guide<\/strong> on <strong>ISO 14644 classification<\/strong> in <strong>white rooms<\/strong>, explaining what each level means and what requirements it involves for your company.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What is the ISO 14644 standard?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>ISO 14644<\/strong> is a set of international standards that regulate the classification of <strong>white rooms<\/strong>. Its purpose is to guarantee that any clean facility meets the air purity levels required for the type of activity carried out.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The standard focuses on three main aspects:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The design and classification of white rooms.<\/li>\n\n\n\n<li>Particle monitoring procedures.<\/li>\n\n\n\n<li>Validation and certification of facilities.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">ISO 14644 classification: main levels<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The standard establishes different <strong>white room<\/strong> classes, ranging from <strong>ISO 1<\/strong> to <strong>ISO 9<\/strong>, with <strong>ISO 1<\/strong> being the strictest (highest purity) and <strong>ISO 9<\/strong> the least demanding. Here are the most common levels:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>ISO 1 \u2013 ISO 3:<\/strong> Extreme purity level. Required for manufacturing microchips and high-precision electronic components.<\/li>\n\n\n\n<li><strong>ISO 4 \u2013 ISO 5:<\/strong> High demand. Common in the <strong><a href=\"https:\/\/ingenic.es\/en\/pharmaceutical-industry\/\" data-type=\"page\" data-id=\"5826\">pharmaceutical<\/a><\/strong> and biotechnological industry for medication filling processes.<\/li>\n\n\n\n<li><strong>ISO 6 \u2013 ISO 7:<\/strong> Medium-high control level. Used in research laboratories, the cosmetic industry, hospitals, or medical device manufacturing.<\/li>\n\n\n\n<li><strong>ISO 8 \u2013 ISO 9:<\/strong> Basic control level. Used in the food industry or packaging areas where contamination is a moderate risk.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Practical example: a hospital operating room is usually classified between <strong>ISO 7<\/strong> and <strong>ISO 8<\/strong>, while semiconductor production requires <strong>ISO 3<\/strong> or lower.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Factors that determine classification<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>ISO 14644 classification in white rooms<\/strong> doesn&#8217;t depend solely on particle concentration. Other key factors also come into play:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Particle concentration:<\/strong> Measured using specialized equipment, recording the number of particles per cubic meter.<\/li>\n\n\n\n<li><strong>Ventilation and filtration systems:<\/strong> The use of HEPA or ULPA filters is essential to guarantee air purity.<\/li>\n\n\n\n<li><strong>Controlled environmental conditions:<\/strong> Temperature, humidity and pressure must remain stable and within regulatory ranges.<\/li>\n\n\n\n<li><strong>Room design and materials:<\/strong> Smooth, resistant finishes, such as stainless steel, are crucial to prevent contaminant buildup.<\/li>\n\n\n\n<li><strong>Access and use practices:<\/strong> White room classification also depends on the procedures staff follow when entering and working in the room.<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">For more information, you can check our article on white room classification according to <strong>ISO 14644<\/strong>.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">ISO 14644 vs. GMP and FDA<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">While <strong>ISO 14644<\/strong> defines purity classes, <strong>GMP<\/strong> (Good Manufacturing Practices) regulations govern the processes that must be followed in sectors such as the <strong>pharmaceutical industry<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Meanwhile, the <strong>FDA<\/strong> in the US requires rooms to comply with both <strong>GMP<\/strong> and <strong>ISO 14644<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In other words: <strong>ISO<\/strong> technically classifies the environment, while <strong>GMP<\/strong> and <strong>FDA<\/strong> define how work must be carried out within those <strong>white rooms<\/strong> to guarantee the final product&#8217;s quality. They complement each other to achieve maximum safety.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How to certify a white room according to ISO 14644?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The certification process includes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Particle measurement:<\/strong> Specialized equipment is used to verify air purity.<\/li>\n\n\n\n<li><strong>System validation:<\/strong> The correct operation of <strong><a href=\"https:\/\/ingenic.es\/en\/hvac\/\" data-type=\"page\" data-id=\"5763\">HVAC<\/a><\/strong> and filtration systems is checked.<\/li>\n\n\n\n<li><strong>Documentation of results:<\/strong> A compliance report is issued recording the measurement and verification results.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">In <strong>Spain<\/strong> and <strong>Europe<\/strong>, these tests are carried out by accredited laboratories and are an essential requirement in regulated sectors.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>ISO 14644 classification in white rooms<\/strong> is the foundation for guaranteeing controlled, safe environments tailored to each sector. Understanding which class your company needs is key to complying with international regulations, optimizing processes, and ensuring the highest product quality.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">Frequently asked questions about ISO 14644 classification in white rooms<\/h3>\n\n\n\n<div data-wp-context=\"{ &quot;autoclose&quot;: false, &quot;accordionItems&quot;: [] }\" data-wp-interactive=\"core\/accordion\" role=\"group\" class=\"wp-block-accordion is-layout-flow wp-block-accordion-is-layout-flow\">\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-1&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-1-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-1\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">What is ISO 14644 classification in white rooms?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-1\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-1-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p class=\"wp-block-paragraph\">It is the international standard that classifies white rooms according to the amount of particles present in the air.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-2&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-2-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-2\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">What is the difference between ISO 1 and ISO 9?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-2\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-2-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p class=\"wp-block-paragraph\">ISO 1 is the cleanest, most demanding level, while ISO 9 allows for a higher particle concentration and has more flexible requirements.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-3&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-3-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-3\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">What factors influence ISO classification?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-3\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-3-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Mainly particle concentration, the filtration system, environmental control, and room design.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-4&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-4-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-4\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">Does ISO 14644 replace GMP regulations?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-4\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-4-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Certification is carried out through audits and tests that verify compliance with <strong>ISO 14644<\/strong> and <strong>GMP<\/strong> regulations. No, they complement each other: <strong>ISO defines air cleanliness<\/strong> and <strong>GMP regulates the processes within the room<\/strong>.<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>ISO 14644 classification in white rooms: it is the international reference that defines how white rooms are classified based on the concentration of airborne particles.<\/p>\n","protected":false},"author":2,"featured_media":6149,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[104,105,93,99],"tags":[],"class_list":["post-6150","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cleanroom","category-cleanroom-2","category-iso","category-regulations"],"acf":[],"_links":{"self":[{"href":"https:\/\/ingenic.es\/en\/wp-json\/wp\/v2\/posts\/6150","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ingenic.es\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ingenic.es\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ingenic.es\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ingenic.es\/en\/wp-json\/wp\/v2\/comments?post=6150"}],"version-history":[{"count":2,"href":"https:\/\/ingenic.es\/en\/wp-json\/wp\/v2\/posts\/6150\/revisions"}],"predecessor-version":[{"id":6155,"href":"https:\/\/ingenic.es\/en\/wp-json\/wp\/v2\/posts\/6150\/revisions\/6155"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ingenic.es\/en\/wp-json\/wp\/v2\/media\/6149"}],"wp:attachment":[{"href":"https:\/\/ingenic.es\/en\/wp-json\/wp\/v2\/media?parent=6150"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ingenic.es\/en\/wp-json\/wp\/v2\/categories?post=6150"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ingenic.es\/en\/wp-json\/wp\/v2\/tags?post=6150"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}