The name sploof sounds silly but having one around helps to eliminate a good portion of the smells from a smoke session. It’s a device that you blow smoke into to reduce the smell of smoke.
You can make your own sploof with a finished paper towel or toilet roll filled with dryer sheets. One end should have a dryer sheet rubber banded or taped on.
If you’re exhaling all of your smoke through a sploof at the back of a fan and only packing one-hitters there should be little to no smoke in the air.