How to lower humidity during hatch?

[Housefullofhens]

We have our very first hatch hatching right now. The first chick has hatched & the humidity climbed from 65% to now 80 & seems to keep climbing. We have 2 more coming right behind this one (as in I would expect the next one in 10 minutes & the 3rd not too far behind that) so I am sure the humidity will keep climbing), how to get it to lower?

 

[Housefullofhens]

We have our very first hatch hatching right now. The first chick has hatched & the humidity climbed from 65% to now 80 & seems to keep climbing. We have 2 more coming right behind this one (as in I would expect the next one in 10 minutes & the 3rd not too far behind that) so I am sure the humidity will keep climbing), how to get it to lower?

Both red plug are out

 

[Chickassan]

Its going to keep climbing, that is normal when chicks start hatching.

 

[RingAroundTheRosie]

Its going to keep climbing, that is normal when chicks start hatching.

At what point would the humidity be considered too high?