The best setup depends on the size and layout of your home, where your litter boxes are located, and how many cats you have.
But simply put, use one AirPax™️ unit for each litter box/cat you have, and place one additional AirPax™️ unit near the entrance of your home.
For example, If you only have one cat, get two AirPax™️ units, to place one unit near the litter, and another near the entrance.
If you have two cats, get three AirPax™️ units, one unit for each cat, and another one near the entrance.
So on and so forth.
Additionally, if you tend to notice lingering litter odor in some other part of your home, feel free to place one unit there as well.
Then just leave it plugged and it gets to work.
How quickly you notice a difference with AirPax™️ depends on a few things...
The size of your home, how many cats you have, and how many AirPax units you're using.
Some customers report noticing a difference in as little as 6 hours, while for others it can take up to 4 days.
So if you don't notice a dramatic change right away, don't worry.
Keep AirPax™️ plugged in and give it a few days to work throughout your home.