Piezography printer best practices SureColor family -- environmental

I am wondering (best practices) if the operating humidity range for this family of printers is different (greater?) than what Epson recommends (40 - 60%)? And below what humidity should a humidifier be used; and conversely above what humidity should a dehumidifier be used?

thank you!

40-60 is correct here. Set De-humid to 70%

warm regards

Thank you for the quick reply!