Prefilter for DIN Thread Filters – 10 Prefilters + 1 Keeper

Keep your respiratory protection performing reliably in harsh Australian worksites with this prefilter kit for DIN thread filters. Designed to sit in front of a compatible DIN thread particulate or combination filter, the prefilter captures larger dust and debris before it reaches the main filter media. This helps extend the service life of the primary filter, reducing replacement frequency and lowering whole-of-life costs—especially in high-dust environments such as civil construction, mining operations, quarrying, and manufacturing.

Each pack includes 10 prefilters plus 1 keeper/retainer to secure the prefilter in place. By protecting the main filter from premature loading, the prefilter supports more consistent breathing performance and helps maintain comfort over long shifts. The result is less downtime for change-outs and a more predictable consumables budget across crews and sites.

Ideal for tasks generating nuisance and hazardous particulate, this accessory is suited to routine maintenance programs and toolbox issue. For best results, inspect prefilters regularly and replace when visibly soiled or when breathing resistance increases, in accordance with your site’s respiratory protection program and the filter manufacturer’s guidance.

Note: Technical specifications (material, efficiency class compatibility, and fitment details) are not available in provided documentation. Confirm compatibility with your specific DIN thread filter and facepiece/respirator setup prior to ordering.