Not once they find out about the perchlorates, they aren't. Everytime they go outside, they'll have to go through a time-consuming cleaning to make sure that no perchlorates get into the living-space. [0] Nothing but artificial air and manufactured water ... No flowers, no fancy restaurants, no luxury vehicles, no trips to the Riviera...<p>[0] <a href="https://www.space.com/21554-mars-toxic-perchlorate-chemicals.html" rel="nofollow">https://www.space.com/21554-mars-toxic-perchlorate-chemicals...</a>