Candor

Is Humidifiers & air purifiers HSA-eligible?

Only with a Letter of Medical Necessity

Air-treatment devices qualify with an LMN for a diagnosed respiratory condition or allergy.

IRS authority

IRS Pub. 502; LMN pathway

How to get covered

  1. Qualifying conditionsasthma, COPD, chronic sinusitis, or diagnosed allergic rhinitis
  2. What the letter must saythat a humidifier or HEPA air purifier in your home is medically necessary to manage that named respiratory diagnosis
  3. How to askAsk the allergist or pulmonologist at the visit where you go over your triggers — they can name the room or setting the device is for.

How LMNs work — timing, renewal, and storing it with the receipt →

Category: Other · Bucket B (Eligible with a Letter of Medical Necessity)

Related answers

Doctor visits & copaysTherapy & mental health counselingPhysical therapyChiropractic careAcupunctureUrgent care & ER visits
Got an LMN?

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Informational only — not tax, legal, or medical advice. Consult a qualified tax professional about your situation. Rules version 2026-08-15, last verified July 2026.

All eligibility answers · Candor — the HSA shoebox