Help to get rid of noise

help how i will remove noise from final rendering in corona ?

moderators note: changed topic’s title to be more informative.

Without more detailed information from you, i have only two suggestions - A. render image longer until noise will be acceptable, B. use one of few denoisers that are shipped with Corona.

This guide may help you:
https://coronarenderer.freshdesk.com/support/solutions/articles/5000501983

Also, there were many similar forum threads in the past, so you can try searching the forum first.