If your husband received a T2200 (Declaration of Conditions of Employment) that he is required to have these expenses, he can then claim them as employment expenses on his income tax return.
Please keep in mind that you are also able to contact TurboTax Live Assist and Review for any of your tax questions. Please see the following FAQ for instructions on how to contact them, https://turbotax.community.intuit.ca/replies/3456106.