There is currently no data available on stability of 2019-nCoV on surfaces. Data from laboratory studies on SARS-CoV and MERS-CoV have shown that stability in the environment depends on several factors including relative temperature, humidity, and surface type. WHO continues to monitor existing evidence around nCoV and will update when such evidence is available.
SURFACELIFESPAN OF COVID-19 Air3 hours Copper4 hours Cardboard24 hours Stainless Steel2-3 days Polypropylene plastic3 days