I have mostly come across the usage of humidifiers but are there some alternatives, if we want to vary RH of air ?
You can try following method:
Humidity controlled chamber was designed in our
laboratory using transparent glass, inside which
hygrometer and humidifier/dehumidifier dish were placed. Saturated aqueous solution of K2SO4 was used as
humidifier for increasing the %RH from 10 to 90 whereas
saturated aqueous solution of KOH was used as
dehumidifier to decrease the humidity inside the chamber
from 90 to 10 %RH. You can purchase hygrometer with thermometer only, which is very low cost.
Shakti Singh Thank you for you reply! Really appreciate your input. I will definitely try it!! I'm still reading the pdf so will come back to you if I have some questions regarding same.
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