Surgical masks haven been proven to be effect for mitigating the spread of spread of respiration diseases, such as COVID-19. Newly reported variants, such as Delta and Omicon have a higher spread rate and people might be infected by inhaling a fewer loading of viruses. Therefore, more frequent sterilization of surgical masks is needed to protect the wearers. A flexible and portable heater for sterilizing the SARS-CoV-2 viruses within an ultra-short time, while maintaining the mask performance.
Frequent disposal increases the economic and environmental burdens, as native masks lack the capabilities of sterilization. Thermal sterilization has been demonstrated effective for decontaminating the viruses and bacteria using ovens. However, a portable and compact sterilization device is still lacking to sterilize the existing commercial surgical masks.
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