I remember someone mentioning a hairdryer from Sally's that it fit on without needing to use the adapter (don't recall which dryer). So that might be an option if Deva has no solution for you.
3a (protein sensitive)
Fine, normal porosity, normal elasticity

Cleansers: Mop-C Hydrating Shampoo, JCGLS
Conditioners: CJCR, CK Renew
Leave-in: CJCR, CK Satin Roots
Stylers: HEBE, UFDCM
Deep Conditioner: CJCR
Standby items:GVP K-Pak