It has been explained that I can deduct this purchase from my taxes. Is this true?
No. It is false. Beginning with the 2018 tax year, W-2 work related expenses are no longer deductible with only four exceptions. Based on the information you have provided you do not qualify for or fall under any of the exceptions.
This is covered in IRS Publication 529 on page 2 at https://www.irs.gov/pub/irs-pdf/p529.pdf To wit:
You can no longer claim a deduction for unreimbursed employee expenses unless you fall into one of the following categories of employment, or have certain qualified educator expenses.
•Armed Forces reservists.
•Qualified performing artists.
•Fee-basis state or local government officials.
•Employees with impairment-related work expenses.
Unreimbursed employee expenses for individuals in these categories of employment are deducted as adjustments to gross income. Qualified employees listed in one of the categories above must complete Form 2106 to take the deduction. Certain qualified educator expenses are also deducted as an adjustment to gross income but you are not required to complete Form 2106.
