A female removing the cloak and head cover inside the girls' school

Q 1: My wife is a teacher; and at school, she takes off her over garment and veil. Is there any sin on her? It should be mentioned that there are no men in this school.

A: If the matter is as mentioned, there is no harm in this In Sha’a-Allah (if Allah wills). May Allah grant us success. May peace and blessings be Companions.