Codivent advanced photocatalytic and antiviral filter coating for HVAC systems

Overview

CodiVent is an advanced air filtration solution that merges two independently validated coating technologies into a single integrated filter product. The first is a photocatalytic coating that removes more than 99% of harmful airborne substances such as nitrogen oxides, sulfur dioxide, and volatile organic compounds. The second is an antiviral and odor-neutralizing chemical coating, ISO certified to eliminate more than 99% of viruses within seconds when applied to HEPA filters. Together, these technologies address chemical pollutants, biological pathogens, and unpleasant odors in one unified solution designed for use within existing HVAC systems.

The value proposition centers on delivering comprehensive indoor air quality improvement without sacrificing system performance. The coating maintains the original pressure drop of the filter, imposes no limit on the Clean Air Delivery Rate, and remains effective for longer than the product's operational lifetime based on accelerated aging tests. With a material cost of approximately $0.09 per square meter and FDA-approved ingredients, CodiVent offers a cost-effective retrofit or integration option for commercial, industrial, and residential air handling systems.

Technical specifications

Dual-action coating system:

• Photocatalytic layer certified to ISO 22197-1 with a deposition velocity of 0.8 cm/s, achieving gas and VOC removal rates exceeding 99%
• Antiviral layer certified to ISO 18184:2019 by UKAS-accredited laboratories, killing more than 99.5% (2.33 logs) of coronavirus within one minute of contact time
• Integrated odor-removal functionality through an additional active ingredient in the coating formulation

Performance characteristics:

• No compromise to filter pressure drop, ensuring compatibility with standard HVAC airflow requirements
• No restriction on Clean Air Delivery Rate, preserving system efficiency
• Accelerated aging tests confirm coating durability beyond product lifetime
• FDA-approved coating materials suitable for a wide range of indoor environments

Validation methodology:

• Independent laboratory testing on randomly selected samples from each production batch
• In-house testing of remaining samples produced consistent results with independent lab findings
• Multiple ISO standard certifications for both antiviral efficacy and photocatalytic gas removal performance

Technology readiness level

Both core technologies have achieved independent laboratory validation at Technology Readiness Level 6 or higher, with ISO certifications already secured for the individual coating formulations. The current stage involves integrating these two proven technologies into a single filtration unit. The next phase includes a three-month feasibility study to evaluate multiple filter configuration designs against gases, VOCs, odors, and pathogens, followed by a three-month prototyping stage to develop a bespoke unit compatible with existing HVAC systems. Real-environment airflow testing will then validate the efficacy and longevity of the combined prototype before commercial readiness.