1.0PowerLung | Better Breathinghttps://www.powerlung.com/region/usdiaadminhttps://www.powerlung.com/region/us/author/diaadmin/rich600338<blockquote class="wp-embedded-content" data-secret="kMedJtRC8L"><a href="https://www.powerlung.com/region/us/models-accessories/resistance-cell/">Resistance Cells</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.powerlung.com/region/us/models-accessories/resistance-cell/embed/#?secret=kMedJtRC8L" width="600" height="338" title="“Resistance Cells” — PowerLung | Better Breathing" data-secret="kMedJtRC8L" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /*! This file is auto-generated */ !function(c,d){"use strict";var e=!1,o=!1;if(d.querySelector)if(c.addEventListener)e=!0;if(c.wp=c.wp||{},c.wp.receiveEmbedMessage);else if(c.wp.receiveEmbedMessage=function(e){var t=e.data;if(!t);else if(!(t.secret||t.message||t.value));else if(/[^a-zA-Z0-9]/.test(t.secret));else{for(var r,s,a,i=d.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),n=d.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),o=new RegExp("^https?:$","i"),l=0;l<n.length;l++)n[l].style.display="none";for(l=0;l<i.length;l++)if(r=i[l],e.source!==r.contentWindow);else{if(r.removeAttribute("style"),"height"===t.message){if(1e3<(s=parseInt(t.value,10)))s=1e3;else if(~~s<200)s=200;r.height=s}if("link"===t.message)if(s=d.createElement("a"),a=d.createElement("a"),s.href=r.getAttribute("src"),a.href=t.value,!o.test(a.protocol));else if(a.host===s.host)if(d.activeElement===r)c.top.location.href=t.value}}},e)c.addEventListener("message",c.wp.receiveEmbedMessage,!1),d.addEventListener("DOMContentLoaded",t,!1),c.addEventListener("load",t,!1);function t(){if(o);else{o=!0;for(var e,t,r,s=-1!==navigator.appVersion.indexOf("MSIE 10"),a=!!navigator.userAgent.match(/Trident.*rv:11\./),i=d.querySelectorAll("iframe.wp-embedded-content"),n=0;n<i.length;n++){if(!(r=(t=i[n]).getAttribute("data-secret")))r=Math.random().toString(36).substr(2,10),t.src+="#?secret="+r,t.setAttribute("data-secret",r);if(s||a)(e=t.cloneNode(!0)).removeAttribute("security"),t.parentNode.replaceChild(e,t);t.contentWindow.postMessage({message:"ready",secret:r},"*")}}}}(window,document); </script> [vc_row][vc_column][vc_column_text]We know it’s easy to be ambitious and want to be the best you can be and with all good intentions choose a PowerLung model that may be good for you later but is too strong for you now. Or, what if you outgrow the one you purchased sooner than expected? To bring you more…https://www.powerlung.com/region/us/wp-content/uploads/resistance-cells.jpeg