Question

In order for pests to feel comfortable and survive well in a food facility they need access to

Answer 1

In order for pests to feel comfortable and survive well in a food facility they need access to food, water, and shelter.
If they have enough food and water, pests can survive well anywhere, because they will have basic resources for survival. And also, if they have a secure shelter where they can feel safe, their chances or survival escalate.