The next lip diphthong is
19 AIR as in “fair”
Which we make by combining “e” as in “Glen” with the neutral vowel “uh” as in “actor”. E-uh AIR.
This sound is very frequently just cut clean in half. Instead of “The air there is fair.” We hear “The e the…”. Many students can find this sound very difficult to make - not because it is difficult in itself, but because they are just not used to making it. An easy way to make this vowel is to say “ever” and then say it again without the “v”: AIR.