Dehydration
Dryness
noun, verbal noun
Even something dry will dry up more if it's got dehydration. There's a lot of dryness going on here.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
乾燥対策でマスクをつけています。
I’m wearing a mask to counter the dryness.