0441828003 - ESAB 85x85mm Replacement Dust Filter for Caddy and Origo Welders

Protect Your Inverter Investment with Genuine Filtration

The ESAB Air Filter 85X85 (Part Number 0441828003) is a critical preventative maintenance component designed specifically for ESAB's range of compact inverter welding machines. In the harsh environment of a fabrication shop, the air is often thick with airborne contaminants, including grinding dust, metallic shavings, and oil mist. Modern inverter power sources, such as the ESAB Caddy Arc, Caddy Tig, and Origo Mig series, rely on forced-air cooling systems to manage the thermal load of their power electronics. Without proper filtration, these cooling fans can ingest conductive metallic dust, depositing it directly onto sensitive printed circuit boards (PCBs) and heatsinks.

Over time, this buildup creates two major risks: thermal inefficiency and electrical short circuits. A layer of dust acts as an insulator on heatsinks, preventing the machine from shedding heat effectively, which can lead to reduced duty cycles or thermal shutdowns. More critically, metallic dust can bridge electrical pathways on the control boards, leading to catastrophic component failure. This 85mm x 85mm filter acts as the first line of defense, trapping particulates before they enter the machine chassis while maintaining the necessary airflow for cooling.

Regular inspection and replacement of the 0441828003 filter is one of the simplest yet most effective ways to ensure the longevity of your equipment. For professional welders and maintenance technicians, ensuring this filter is clean and intact is standard operating procedure. It is designed to fit perfectly into the intake grille of compatible units, ensuring no bypass air leaks around the edges. Whether you are operating a Caddy Tig 2200i in a precision shop or an Origo Mig in a general repair bay, this small component plays a massive role in machine reliability.

Key Technical Benefits:

• Conductive Dust Protection: Specifically screens out metallic particles that cause board shorts.
• Thermal Management: Keeps internal heatsinks clean for maximum heat dissipation.
• OEM Fitment: Exact 85x85mm sizing ensures a seal against the fan guard.
• Cost-Effective Maintenance: Prevents expensive inverter board repairs.