[Speedslug]

Box fan in the window is not going to be enough, sorry.

When the wind of the world blows against that window, you might as well not have a fan there at all.

Fuel combustion gasses are not healthy and a box fan simply will not move enough air out of your breathing space fast enough or far enough away.

We have tons of conversations about this topic.

Once you add in the off gassing from hazardous metals in coloring the glass you really need one thousand cfm of air to move away from you and get it outside someplace at least 10 feet away from where your make up air is coming in.

You would be better off setting up a picnic table on an open patio with box fan blowing on to you.