Air leak

Hello just found out 1 of the screws for the air sensor wasn't there I been in dust places should I be worried the air got sucked in there with dirt and sand .should I sea foam it ? I took out the other one so I could buy the same one at the store

 

The screws just hold the maf assembly in place. There should be an o-ring around the maf assembly that protrudes into the chai tube. Make sure it's there. I replaced the crappy philips oem screws with Allen head screws and also used some anti seize on them.

 

Okay thank you