const updateHeaderMetrics = () => { const header = document.getElementById('header'); const rect = header.getBoundingClientRect(); const headerHeight = rect.bottom; document.documentElement.style.setProperty('--header-height', `${headerHeight}px`); }; window.addEventListener('DOMContentLoaded', updateHeaderMetrics); window.addEventListener('resize', updateHeaderMetrics); const header = document.getElementById('header'); const resizeObserver = new ResizeObserver(entries => { for (let entry of entries) { const rect = entry.target.getBoundingClientRect(); const headerHeight = rect.bottom; document.documentElement.style.setProperty('--header-height', `${headerHeight}px`); } }); resizeObserver.observe(header);

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Air purifier industrial filter electrostatic negative ion equipment purification device pipeline filter

Industrial Air Purifier Manufacturer: Wholesale Electrostatic & Negative Ion Pipeline Filters for Superior Purification

$182.50

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DS-H

DS-H

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Estimated Delivery：Feb-07 - Feb-11

Vendor by: 1688

SKU: -DS-H-A00163174

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