Zentek's ZenGUARD Air Filters Exceed ASHRAE Standard 241 Requirements, Achieving 42% Infectious Aerosol Removal Efficiency

Zentek's ZenGUARD Enhanced Air Filters achieved a 42% infectious aerosol removal efficiency, surpassing untreated filters by 2.6 times. The technology complies with ASHRAE Standard 241-2023 guidelines and can be used with lower-rated MERV 9A filters, avoiding costly HVAC system upgrades. This positions ZenGUARD as a cost-effective solution for improving indoor air quality and reducing maintenance costs.

Zentek Ltd. (ZTEK, Financial), a leader in technological innovation for air filtration, has announced promising new test results for its ZenGUARD™ Enhanced Air Filters. The tests, conducted by the ISO-certified lab LMS Technologies, revealed that the ZenGUARD filters achieve an impressive 42% infectious aerosol removal efficiency when tested against the bacteriophage MS2, surpassing the 16% efficiency of untreated filters. This demonstrates a 2.6 times improvement in viral filtration efficiency [1].

Significantly, the ZenGUARD technology meets the ASHRAE Standard 241-2023 guidelines for controlling infectious aerosols without increasing energy consumption or carbon emissions. This compliance is crucial for facilities aiming to reduce airborne virus transmission while maintaining energy efficiency [2].

An outstanding feature of Zentek's technology is its compatibility with existing HVAC systems without requiring MERV 11A or higher filters, thanks to its capability of achieving a 42% EPR even with MERV 9A filters. This positions ZenGUARD as a cost-effective solution for improving indoor air quality and reducing maintenance costs, providing a strategic edge for building operators facing air quality mandates and carbon reduction goals [3].

"These results reaffirm ZenGUARD's ability to improve indoor quality efficiently," stated Greg Fenton, CEO of Zentek Ltd. "We are proud to provide a unique solution that meets the most recent air quality standards, while also reducing costs and supporting environmental goals."

Zentek's latest third-party test results represent a significant technical validation for their ZenGUARD™ technology. The testing by ISO-certified LMS Technologies shows ZenGUARD Enhanced Air Filters achieving 42% infectious aerosol removal efficiency against MS2 bacteriophage, compared to just 16% for untreated filters—a 2.6x improvement [2].

What makes these results particularly noteworthy is their alignment with the new ASHRAE Standard 241-2023 for control of infectious aerosols. This standard has emerged as the benchmark for building operators seeking to reduce airborne virus transmission while managing energy consumption. The MS2 bacteriophage testing methodology used is specifically recognized by ASHRAE 241, giving these results direct applicability to real-world compliance scenarios [1].

The competitive advantage here is multi-dimensional. ZenGUARD's technology appears to achieve ASHRAE 241 compliance without the typical downsides of higher-rated filters: no increased pressure drop (which would require more energy), no need for equipment upgrades, and potentially extended filter life. This represents a rare triple-win of improved performance, maintained energy efficiency, and reduced operational costs [2].

Most compelling is that ZenGUARD can achieve a 42% EPR rating even when applied to lower-rated MERV 9A filters, whereas ASHRAE 241 assigns zero EPR to filters below MERV 11A. This suggests facility managers could implement ZenGUARD without upgrading existing HVAC systems to accommodate denser filters—potentially removing a significant barrier to adoption for building operators facing both indoor air quality mandates and carbon reduction targets [3].

References:
[1] https://www.gurufocus.com/news/2923513/zentek-announces-test-results-validating-zenguardtm-enhanced-air-filters-as-a-highperformance-solution-for-ashrae-standard-241-compliance-ztek-stock-news
[2] https://www.stocktitan.net/news/ZTEK/zentek-announces-test-results-validating-zen-guard-tm-enhanced-air-txk2wlcof55m.html
[3] https://www.gurufocus.com/news/2923849/zteks-zenguard-filters-prove-superior-in-new-test-results-ztek-stock-news