The ecommerce arm of WERCS Inc, a paint booth service company in Kalama, Washington.

Category · 17 SKUs

Second-stage exhaust

Secondary exhaust filtration required by NESHAP 6H or aerospace NESHAP 319 for additional capture beyond the primary exhaust filter.

  • 3 sizes
  • from $154.45
  • Order by 4 PM Pacific for same-day processing

Shop by size

Sorted by availability, then by how the fit was verified, strongest first.

Quick answer

Second-stage exhaust: Secondary exhaust filtration required by NESHAP 6H or aerospace NESHAP 319 for additional capture beyond the primary exhaust filter. Typical replacement cycle: 30-30 days under normal load. 17 SKUs available across 6 media types. Suppliers in this catalog: AFC.

By Ben Kurtz · Fitment reviewer, 20 years in paint booth service · Updated Sep 22, 2026

Frequently asked

What is second-stage exhaust?
Secondary exhaust filtration required by NESHAP 6H or aerospace NESHAP 319 for additional capture beyond the primary exhaust filter.
How often do second-stage exhaust need replacing?
Typical cycle: every 30-30 days under normal shop load. Heavy production shops on the short end of the range, light-volume shops on the long end. Pressure-drop monitoring (manometer reading) is the most reliable replacement signal beyond calendar cycle.
How many second-stage exhaust SKUs does BoothFilterPro carry?
17 SKUs currently catalogued in second-stage exhaust, primarily aerospace neshap 3-stage system (8 SKUs). Filter by supplier or dimensions on each SKU detail page for fit-checking. Multi-source-verified SKUs (cross-referenced across 2+ catalog years) appear first in the grid.
Are second-stage exhaust filters required by EPA 6H?
EPA 40 CFR Part 63 Subpart HHHHHH (the "6H" rule for paint stripping and miscellaneous surface coating) requires capture systems meeting specified efficiency thresholds. Second-stage exhaust filtration (HEPA, activated carbon, NESHAP multistage) is required for booths painting cars with HAP-containing coatings and for specific aerospace coatings. Confirm requirements with your state air-quality agency.

Sources

Primary references cited on this page.

Related on BoothFilterPro