Enough air for eggs.

[M&I Gecko]

How often should you allow eggs to get fresh air that are being incubated in a sealed container?

 

[acpart]

Most people take the cover off briefly every week or so.

Aliza

 

[Retribution Reptiles]

i typically exchange air every week or so. just depends on how much condensation is on the lids

 

[Kristi23]

I usually open mine once a week.