Atmosferic pressure plasma can sterilize Escherichia coli bacteria because many ions and reactice species, such as oxygen and ozon atoms are generated during discharge using emission epectroscopy and the observed emission spectrum is atomic oxygen 394.2 and 436.8 nm and the second positive system nitrogen 337.1 nm. The experiment results showed that DBD treatment for 70 seconds of sterilized Escherichia coli was 99.99% effective and ozone molecules were were dominat bacterial species. From these result it can be concluded that the pulsed DBD system is very effective for sterilization. The result of designing medical equipment for sterilization and disinfection viruces are suitable and can be used to kill echerichia coli bacteria from the result of experiment conducted. Keywords : atmospheric microplasma, virus sterilization and disinfection, airbone viruces, surfave colonized viruces.