1.0Otter Storehttps://otter-store.com/en/juanhttps://otter-store.com/en/author/juan/rich600338<blockquote class="wp-embedded-content" data-secret="2MqqRUN3r7"><a href="https://otter-store.com/en/producto/529/">ADC-500</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://otter-store.com/en/producto/529/embed/#?secret=2MqqRUN3r7" width="600" height="338" title="“ADC-500” — Otter Store" data-secret="2MqqRUN3r7" 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://otter-store.com/wp-includes/js/wp-embed.min.js /* ]]> */ </script> https://otter-store.com/wp-content/uploads/2025/11/adc-500.1_1.jpg800800Air ducts are an important system in buildings. The air duct system not only circulates air but also carries particles such as dust mites, dirt, and mold. As we all know, indoor ventilation not only provides fresh air but also reduces the threat of viruses. In addition, the efficient operation and maintenance of HVAC systems also require air duct cleaning. This is crucial for safe operation and reducing system costs. Traditional air duct cleaning is challenging due to the narrow duct diameter, numerous corners, and difficulty in manually removing dirt. The high labor cost also creates additional issues for cleaning the ductwork. Ask Information