Is Air Purifier HSA-Eligible? (2026)
Air purifiers are HSA-eligible only with a letter of medical necessity for asthma or severe allergies.
Typical Cost
$100–$800
Details
An air purifier bought for general use? Not eligible. An air purifier prescribed by your doctor because you have asthma, severe allergies, or a respiratory condition? That's eligible. You'll need a letter of medical necessity (LMN) from your doctor specifying your condition and that the air purifier is medically necessary. The LMN should ideally reference IRS Publication 502.
Requirements
Requires a letter of medical necessity from a doctor for a diagnosed respiratory condition (asthma, allergies, COPD, etc.).
Frequently Asked Questions
Is an air purifier HSA-eligible?
Only with a doctor's letter of medical necessity for a condition like asthma or severe allergies. You can't just buy one for general air quality.
What documentation do I need?
A letter of medical necessity (LMN) from your doctor stating your diagnosis and that the air purifier is medically required treatment.
Related HSA Expenses
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