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No Mist Coming Out

This is the most common issue and is almost always caused by a clogged mesh or incorrect assembly. Step-by-step fix:
  1. Check the mesh — hold the nebulizer up to a light and look through the mesh. If it appears cloudy or has visible residue, it needs cleaning.
  2. Clean the mesh: clean and disinfect the medication cup with 75% ethanol, as the MistPro manual and the Cleaning Guide describe. Do not insert any object into the mesh holes.
  3. Rinse, then run clean water through it: pour out the ethanol and rinse the medication cup several times with clean water to remove all disinfectant. Then fill it with clean water, attach it, and run the device for 10 minutes. Don’t breathe in the mist while it runs. After cleaning, wipe away the water with new medical gauze and let the medication cup dry fully right away. If there is still little or no mist, the mesh may be worn: replace the medication cup or contact SonoHealth support.
  4. Check assembly — ensure the medication cup and mesh component are properly seated and locked. A loose connection prevents the mesh from vibrating.
  5. Check battery/charge — a low battery can reduce vibration power below the threshold needed for mist generation. Charge fully before use.

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Weak or Reduced Mist Output

  • Medication cup not filled adequately — the cup needs to have enough liquid to cover the mesh. Check fill level.
  • Thick medication — some formulations are more viscous. Try diluting with normal saline as directed by your physician.
  • Partially clogged mesh — follow the cleaning steps above.
  • Low battery — charge fully. A weak charge can reduce mesh vibration frequency.

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Device Won’t Turn On

  • Battery fully discharged — connect to USB-C charger and charge for at least 30 minutes before attempting to use.
  • Charging cable issue — try a different USB-C cable or port.
  • Button not pressed correctly — press and hold the power button for 2 seconds (not a brief tap).

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Device Turns Off Mid-Treatment

  • Auto-shutoff activated — the MistPro has an auto-shutoff feature that activates when the medication cup is empty or after a set treatment duration.
  • Low battery — charge before your next treatment.
  • Overheating — allow the device to cool for 5 minutes if used multiple times in quick succession.

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Medication Leaking

  • Cup overfilled — do not fill above the maximum fill line.
  • Cup not properly sealed — ensure the cup is fully clicked into place.
  • Using device at angle — for best results, keep the device as upright as possible during treatment.

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Unusual Noise During Use

The MistPro operates near-silently. Any unusual noise may indicate:
  • Debris in the medication cup — rinse and inspect the cup.
  • Loose component — check that all parts are fully assembled and secure.
  • Foreign object in mesh — inspect and rinse thoroughly.

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Cleaning & Maintenance (Prevention)

Regular cleaning prevents most MistPro issues:
Never use bleach or abrasive cleaning tools on the mesh. These can damage the mesh holes and compromise mist particle size. For disinfection, use the 75% ethanol solution the MistPro manual specifies.

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When to Contact SonoHealth Support

Contact SonoHealth if:
  • Cleaning does not restore mist output
  • Device does not charge
  • Device shows physical damage
  • You are within the 1-year warranty period and suspect a defect
The MistPro is covered by a 1-year manufacturer warranty for defects under normal use. Contact: sonohealth.com/contact

Shop MistPro Mesh Nebulizer

FDA-Approved · 2-Year Warranty · $69