How long can humidity be too high?

[Roxannemc]

Ive been hatching a few years now and understand humidity factor but i wonder if Anyone has read somewhere how long the humidity can be too high to drowned the chick..I somehow dont feel it could be minutes but more like hours. But then thats guessing.

 

[ChickenCanoe]

More like days.
The egg just has to lose about 13% of its weight during incubation.

 

[Yorkshire Coop]

I too would agree with ChickenCanoe that it would be days rather than minutes or hours. Consistent high humidity would cause problems. Average humidity during the incubation period is what counts in order for the eggs to lose the required amount of moisture. Short term variatioms should not be a problem as long as the average has been ok.