Cleanliness is critical to minimize air and dust during installation and dry times. Here are a few ways to mitigate these issues:
1. If you have pets, keep them in another room (preferably separated with a door.
2. Vacuum the space really well, including all vents and windowsills thoroughly.
3. Make sure people aren't creating excessive airflow in the room your're working in, by opening and closing doors.
4. De-shed all rollers used in the application as mentioned in the tutorial videos.