Ok so first off no I'm not going to be a complete retard and open my house and ask for all the fumes to come into my house. but my question is with me going in and out of the house of course some of the fumes will be coming in. Now I know for humans as long as the air is well circulated it will be fine. Also I'm going to be running a fan in the room that he is in to keep the air circulating but my question is could the fumes end up causing him harm?