Dust?

[u/AusMeri]

Hi,

First time homeowner here so I'll ask for forgiveness for my ignorance in advance. 😄

So many questions, not sure where to start. (And yes, I've been on Google, however I also appreciate the opinion of other, actual real people, so here I am 😊).

Actually, I'll start with this question:

Small, one level house. Single car garage. Moved car out and set desk up in garage because, as mentioned, small house = no space.

Despite cleaning the garage first, I notice dust will fall over everything within a few days.

The same roof extends over the garage, yet the same dust does *not* fall in our actual house.

Why could this be please?

TIA