I purchased a standing desk at my own expense to use in my office (NOT a home office, this is at my employer's headquarters). I did not have a doctor's note, so my employer did not pay to replace my standard desk, I decided to absorb the cost myself. But since this desk (or whatever desk is in my office) is essential to my work, I believe it is deductible. However, the only references I can find are for self-employed people or people with a home office, neither of which apply to me.