humidity is relative. do you get the 60% and 85 deg at the same time, or is that a Hi/Lo record that many digitals keep. spiking to 60% is really no problem. using a heater in your room during the lights off will keep humidity from rising to high. would not recommend 85 unless you are running CO2. buy a humidistat / temp controller and hook it to the exhaust fan. keep temp under 80 if no CO2. if ambient humidity level is above what you would like on the intake, you can use a dehumidifier in the room, or better yet an airconditioner which dehumidifies and protects against heat overload. no charge for this advice at this time.