COBALT® 2×4 HEPA Carbon Hybrid Filter
Combined HEPA + carbon filter for COBALT 2×4.

What is this product?
COBALT® 2×4 HEPA Carbon Hybrid Filter is a genuine filter for Surgically Clean Air COBALT®. Combined HEPA + carbon filter for COBALT 2×4. Factory-spec build, annual or semi-annual replacement, 90-day warranty.
Frequently Asked Questions
How often should I replace this filter?
Replacement intervals depend on usage and air quality. Most Surgically Clean Air filters last 6-12 months under normal conditions. Your unit's indicator light will alert you when it's time for a replacement.
Is this an OEM (genuine) replacement?
Yes. All filters sold here are factory-spec replacements built to the same standards as the originals shipped with your unit. Generic filters may not meet our HEPA certification or warranty requirements.
Will using a third-party filter void my warranty?
Only genuine Surgically Clean Air filters maintain warranty coverage. Third-party filters may not meet the airflow + capture specifications your unit was engineered for.
How do I install a replacement filter?
Each filter ships with installation instructions. The process typically takes under 5 minutes — power off the unit, open the filter compartment, swap the old filter for the new one, and reset the filter indicator. No tools required.
Compatible Air Purifiers
Designed for COBALT systems.


