These pre-filters are used to add an extra layer of filtration to your filter and are essential for restorative drying, fire and smoke remediation, mould remediation, and more.
These pre-filters are used to add an extra layer of filtration to your filter and are essential for restorative drying, fire and smoke remediation, mould remediation, and more.
Special Instructions:
When using your Velo or Velo Pro HEPA Attachment for water damage restoration, mold remediation, or other conditions where dangerous contaminants may be present, both the HEPA filter (F519) and the Prefilter (F520) should be replaced after each job to help prevent cross-contamination.
Before installing new filters, vacuum and damp wipe top plate and wire frame according to current ANSI/IICRC standards for remediation. Remove filters and clean unit before removing it from the containment area to avoid cross-contamination. Allow the unit to dry before installing clean filters.