# Combating Pathogens Using Carbon-Fiber Ionizers (CFIs) for Air Purification: A Narrative Review
## 5 Conclusions  
Carbon fiber used in ionization processes demonstrates a superior capacity for ion emission due to the material's electrical properties, which allow for a more efficient generation of ions when an electric current is applied. The increased density of ions effectively neutralizes airborne particles, thus aiding in their removal from the air. The unique properties of carbon fibers help minimize the electric field strength required for ion generation, thereby limiting ozone production. This aspect is crucial for indoor environments where ozone accumulation could pose health risks. This makes it a promising solution for managing indoor air quality in various settings, particularly where the minimization of ozone and other harmful byproducts is critical.  
Regardless of the wide range of experimental conditions and pathogens involved, they collectively lead to a singular inference: ions evidently serve as an effective method for combating microorganisms in our surroundings. In conclusion, CFI systems apparently show significant promise for the destruction of microbes. Choosing the optimal material, voltage, and airflow rate seems crucial for ensuring the successful eradication of microorganisms. However, in order to reach more definite findings regarding the effectiveness of CFIs in containing microorganisms, it is necessary to conduct studies that encompass a broader range of microorganisms (relying on human pathogens) and employ more standardized methodologies/study approaches.  
We require a standardized, large-scale testing method that includes replicated trials and time-matched control conditions. Such an approach is essential for contextualizing laboratory efficacy findings, translating them into real-world scenarios, and facilitating comparisons between technologies. A systematic review combined with meta-analysis could provide deeper insights into the findings of the research conducted thus far.  
Conceptualization, A.R., A.N., P.K., I.A., A.I., T.K. and M.J.; Funding acquisition, P.K.; Writing--original draft preparation, A.R., A.N., I.A., T.K. and M.J.; Writing--review and editing, P.K., A.I., S.D.L., J.T., S.M. and S.D.; Investigation and Methodology, A.N., A.R., T.K., J.T., S.M., S.D. and M.J.; Project administration, S.D. and J.T.; Supervision and Resources, P.K. and I.A. All authors have read and agreed to the published version of the manuscript.  
This work was supported by the Science Fund of the Republic of Serbia, Green program of cooperation between science and industry, grant no. 5661. Any opinions, findings, conclusions, or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the funder.  
Not applicable.  
The authors [PERSON] and [PERSON] are both acknowledged as senior authors who equally contributed to the supervision of this research. Finally, this work would have been impossible without the invaluable contributions of the authors whose works we have reviewed. Gratitude is due to all those dedicated to researching and ensuring the cleanliness and safety of the air we breathe.