Active HVAC Biodefense:
DURITex™ Treated Filters
By fusing active antimicrobials directly to structural MERV 13 high-performance media via proprietary thermal bonding, DURITex™ eliminates the risks associated with toxic particulate accumulation. Rather than simply capturing biological vectors where they nest and multiply, our treated media physically destroys incoming pathogens on contact.
HVAC Static Balance
0.37" WG Initial Drop
High-efficiency media structure ensures standard system airflow resistance without high motor wear.
Lysis Performance
Zero Bio-Nesting
Pathogens captured by the filter are chemically deactivated, completely eliminating secondary handler risk.
Real-World Verification
100% Site Conformity
National Comfort Institute site audits confirm flawless integration into high-velocity commercial RTUs.
HVAC Pressure Curves & Clean Airflow Velocity
Evaluating initial resistance and loading profiles against HEPA and metal alternatives.
Airflow Resistance (Pressure Drop) Comparison
Nominal Face Velocity: 492 FPMThe HVAC Pressure Threshold: Traditional high-efficiency HEPA filters create a steep system pressure drop (>1.10" WG), leading to rapid compressor fatigue and massive power consumption. DURITex™ treated MERV 13 media delivers safe capture levels at a highly balanced operating pressure of 0.37" WG. Reference: CI-MERV 13 Pleat 2- Dual Layer.pdf.
Official Test Record Details
Columbus Industries PR-17-076Continuous IoT Particulate Matter Logging
Comparing mass concentrations (PM2.5 to PM10.0) post-installation of DURITex™ filters. Source: Duritex Filter PM results.
Live Particulate Suppression
Using high-precision industrial IoT laser sensors, environmental engineers monitored particulate distribution before and after DURITex™ deployment.
Immediately following system activation, localized dust particle density dropped dramatically, demonstrating exceptional mechanical scrubbing capacity.
Rooftop Air Balance & Capacity Integrity
Certified operational site audit logs verifying zero airflow degradation post-treatment.
TAB Tool Certification
Testing and balance (TAB) (Certification # 11-267-02) at McDonald's Spring, TX location confirm perfect compliance.
RTU Supply & Return Flow Performance
100% Flow Conformity Achieved| System ID | Required CFM | Original Test CFM | Final CFM | Conformity Status |
|---|---|---|---|---|
| RTU 1 Supply (Kitchen) | 7,000 | 6,978 | 6,978 | In Balance |
| RTU 1 Return (Storage) | -5,800 | -5,659 | -5,659 | In Balance |
| RTU 2 Supply (Crew) | 2,000 | 2,196 | 1,952 | In Balance |
| RTU 3 Supply (Dining) | 5,000 | 4,614 | 5,032 | In Balance |
| EF1 Exhaust (Fry Vats) | -1,350 | -1,357 | -1,357 | In Balance |
Clinical Pathogen Decontamination Kinetics
High-containment BSL-3 laboratory validation curves tracking viral deactivation over contact exposure intervals. Source: UTMBSTUDY.
SARS-CoV-2 Log Reduction Velocity
Antiviral evaluation of Treated DURITex Textile structures in direct exposure contact assays confirms rapid physical lysis of viral membranes, rendering the media actively self-disinfecting.
Triplicate sample average plaque-forming units (PFU) titration curves. Limit of detection: 30 PFU/sample.
Toxicity Screening & Environmental Colonization
Assessing biological contamination levels and dermal safety indexes from clinical trial extracts.
Viable Swab Contamination Levels
Biocompatibility Dermal Irritation Profiles
FDA GLP Protocol Testing (21 CFR Part 58)
Guinea Pig Sensitization
30 Hartley albino models exposed to Treated DURITex Textile extracts yielded zero erythema and edema at 24/48 hours.
Rabbit Local Irritation
Physiological extract injections on New Zealand White Rabbits yielded zero deviation from baseline blank controls.