{"id":7628,"date":"2025-10-29T18:00:38","date_gmt":"2025-10-29T10:00:38","guid":{"rendered":"https:\/\/www.hepafil.com\/?p=7628"},"modified":"2025-12-12T16:43:15","modified_gmt":"2025-12-12T08:43:15","slug":"filter-screen-grading-standards-how-theyre-rated-how-to-choose","status":"publish","type":"post","link":"https:\/\/www.hepafil.com\/es\/filter-screen-grading-standards-how-theyre-rated-how-to-choose\/","title":{"rendered":"Filter Screen Grading Standards: How They\u2019re Rated &#038; How to Choose"},"content":{"rendered":"<p>Picking the right filter screen can feel overwhelming if you\u2019re new to it. These common filtration materials are everywhere\u2014clean workshops, HVAC systems, you name it. Let\u2019s break down the key grading standards and how to pick one that fits, no jargon overload.<\/p>\n<p>Key Filter Screen Grading Standards<\/p>\n<p>&nbsp;<\/p>\n<p>Filter screens are graded by filtration efficiency and precision, and three standards are used most worldwide: European (EN), American (ASHRAE), and Chinese (GB\/T).<\/p>\n<p>&nbsp;<\/p>\n<p>European Standards (EN 779 &amp; EN 1822)<\/p>\n<p>&nbsp;<\/p>\n<p>This is the go-to standard globally. It grades screens by how well they filter: G1-G4 are coarse filters (for big particles), F5-F9 are medium filters (for smaller stuff). Simple rule: higher letter\/number = better efficiency.<\/p>\n<p>&nbsp;<\/p>\n<p>American Standard (ASHRAE 52.2)<\/p>\n<p>&nbsp;<\/p>\n<p>You\u2019ll hear this called MERV rating (Minimum Efficiency Reporting Value) \u2014 grades 1 to 20. Just like European standards, higher MERV means the screen catches tinier particles. MERV 13+, for example, is great for spots needing clean air.<\/p>\n<p>&nbsp;<\/p>\n<p>Chinese Standard (GB\/T 14295)<\/p>\n<p>&nbsp;<\/p>\n<p>China\u2019s national standard covers G1 to U17, mixing both efficiency and precision. Same logic applies: the higher the grade, the more effective the filtration.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-image-7629 size-full\" src=\"https:\/\/www.hepafil.com\/wp-content\/uploads\/2025\/12\/filters.png\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.hepafil.com\/wp-content\/uploads\/2025\/12\/filters.png 300w, https:\/\/www.hepafil.com\/wp-content\/uploads\/2025\/12\/filters-150x150.png 150w, https:\/\/www.hepafil.com\/wp-content\/uploads\/2025\/12\/filters-100x100.png 100w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>4 Simple Tips to Pick the Right Filter Screen<\/p>\n<p>&nbsp;<\/p>\n<p>&#8211; Match efficiency to your need: Clean workshops or labs need high efficiency\u2014go for F-class (European) or MERV 10+ (American). Basic HVAC? G-class or low MERV works.<\/p>\n<p>&nbsp;<\/p>\n<p>&#8211; Pick precision for particle size: Need to catch fine dust or fumes? Grab a high-grade screen (like F8 or MERV 16). Big debris only? Stick to coarse grades.<\/p>\n<p>&nbsp;<\/p>\n<p>&#8211; Check your environment: Hot, humid, or chemical-heavy spots? Pick a screen with materials that hold up (like stainless steel for moisture). Regular rooms? Standard materials are fine.<\/p>\n<p>&nbsp;<\/p>\n<p>&#8211; Don\u2019t overspend on \u201cbetter\u201d: A top-grade screen is wasted in a garage. Balance price and performance\u2014get what you need, not the priciest option.<\/p>\n<p>&nbsp;<\/p>\n<p>The right filter screen keeps your systems running and air clean. Just match the grade to your space, check the standard ratings, and you\u2019ll nail the choice. No fancy expertise needed\u2014just focus on what your space actually requires.<\/p>","protected":false},"excerpt":{"rendered":"<p>Picking the right filter screen can feel overwhelming if you\u2019re new to it. These common filtration materials are everywhere\u2014clean workshops, HVAC systems, you name it. Let\u2019s break down the key grading standards and how to pick one that fits, no jargon overload. Key Filter Screen Grading Standards &nbsp; Filter screens are graded by filtration efficiency [&hellip;]<\/p>","protected":false},"author":2,"featured_media":7629,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"class_list":["post-7628","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.hepafil.com\/es\/wp-json\/wp\/v2\/posts\/7628","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hepafil.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hepafil.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hepafil.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hepafil.com\/es\/wp-json\/wp\/v2\/comments?post=7628"}],"version-history":[{"count":1,"href":"https:\/\/www.hepafil.com\/es\/wp-json\/wp\/v2\/posts\/7628\/revisions"}],"predecessor-version":[{"id":7630,"href":"https:\/\/www.hepafil.com\/es\/wp-json\/wp\/v2\/posts\/7628\/revisions\/7630"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hepafil.com\/es\/wp-json\/wp\/v2\/media\/7629"}],"wp:attachment":[{"href":"https:\/\/www.hepafil.com\/es\/wp-json\/wp\/v2\/media?parent=7628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hepafil.com\/es\/wp-json\/wp\/v2\/categories?post=7628"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hepafil.com\/es\/wp-json\/wp\/v2\/tags?post=7628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}