1.0Legacy FMhttps://translate-legacy.tangiblelaunchpad.com/esnmitchell@legacy-fm.comhttps://translate-legacy.tangiblelaunchpad.com/es/author/nmitchelllegacy-fm-com/rich600338<blockquote class="wp-embedded-content" data-secret="Ozb0GBu4hs"><a href="https://translate-legacy.tangiblelaunchpad.com/es/answer/what-is-a-merv-rating/">What is a MERV rating?</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://translate-legacy.tangiblelaunchpad.com/es/answer/what-is-a-merv-rating/embed/#?secret=Ozb0GBu4hs" width="600" height="338" title="“What is a MERV rating?” — Legacy FM" data-secret="Ozb0GBu4hs" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://translate-legacy.tangiblelaunchpad.com/wp-includes/js/wp-embed.min.js /* ]]> */ </script>A MERV rating refers to the scale on which filters are rated. This rating system was developed by ASHRAE and stands for minimum efficiency reporting value. The higher the MERV rating, the more particles the filter can capture, and the smaller those particles can be. Particle sizes range from 0.3 and 10 microns (µm). The […]