Yes, you can use Blender. Blender's license does not place any restrictions on what you can do with the models you make with it:
What you create with Blender is your sole property. All your artwork –
images or movie files – including the .blend files and other data
files Blender can write, is free for you to use as you like.
That means that Blender can be used commercially by artists, by
studios to make animation films or vfx, by game artists to work on
commercial games, by scientists for research, and by students in
educational institutions.
Source: https://www.blender.org/about/license/