The Data Behind the Dryer
The largest known dataset of hearing aid moisture removal — proving that moisture is invisible, universal, and always worth removing.
Based on 129,042 Redux Pro treatments, November 2019 – July 2022. 532 machines at 257 audiology practices (451 locations). Real-world observational data.
The Invisible Problem
The Redux Pro workflow captures what patients experience before and after moisture removal — revealing what they didn’t know they were missing.
“Even when patients said ‘it’s working fine,’ nearly 4 out of 5 heard improvement after treatment. They didn’t know moisture was affecting their hearing.”
Patient Assessment
Audiologist asks: “How is your hearing aid performing?”
Patient-reported condition:
Dead • Weak • Normal
Moisture Removed
Vacuum drying with ±0.1 µL precision
Patient Feedback
“Does your hearing aid sound better?”
Patient reports improvement:
Louder • More Crisp • Clearer
“Normal” — Working Fine
Patient said their hearing aid was amplifying properly
“Weak” — Underperforming
Patient said their hearing aid wasn’t loud enough
“Dead” — No Sound
Hearing aid completely stopped working
The key insight: Moisture degrades hearing aid performance even when patients don’t perceive a problem. Nearly 80% of “Normal” devices sounded better after treatment.
Three-Zone Clinical Framework
Every valid moisture reading (≥0.5 µL) falls into one of three clinically actionable zones. Click each zone to learn more.
Every zone means moisture was present and removed. Green is not “all clear” — it confirms that even routine moisture accumulation is measurable and that the device benefited from professional treatment.
Routine Moisture — Device Benefited From Treatment
The most common result. Measurable moisture was present and successfully removed. Even at this level, patients consistently report clearer sound after treatment. Green does not mean “all clear” — it means daily moisture accumulation is within the routine range.
Moderate Moisture — Warrants Clinical Attention
Moisture exposure beyond routine daily accumulation. May reflect environmental factors (high humidity, exercise), behavioral patterns (inconsistent drying), or a specific moisture event. At this level, moisture is actively degrading device performance.
Significant Moisture — May Indicate Water Damage
Substantial moisture presence. For context, completely inoperable (“Dead”) devices averaged 7.47 µL. Readings at this level suggest a significant water exposure event or prolonged accumulation without treatment. Devices may have experienced component stress.
The difference between zones is the urgency of the conversation, not whether one is needed. Every reading ≥0.5 µL means moisture was present and removed — every treatment is a counseling opportunity.
Success Rate by Moisture Volume
Higher moisture levels correlate with higher perceived improvement — because the performance impact was greater before treatment.
Why higher moisture = higher perceived improvement
This pattern is expected: devices with more moisture removed are more likely to show perceptible improvement because the performance impact was greater before treatment. An 87% improvement rate at 0.5–1.0 µL does not mean treatment was less effective — it means there was less perceptible degradation to reverse. The moisture was still present and still removed.
Recovery by Device Condition
Patient-reported device condition at check-in reveals how moisture damage severity affects recovery outcomes.
“Normal”
Patient said device was amplifying properly
“Weak”
Patient said device wasn’t loud enough
“Dead”
Hearing aid was completely inoperable
The “Normal” Insight
Nearly 80% of patients who said their hearing aids were “working fine” still heard improvement after moisture removal. Moisture degrades performance even when patients don’t perceive a problem.
The Preventive Case
Dead devices had 3x the moisture (7.47 µL) but only 55.6% recovery. Once damage becomes severe, full recovery is less likely. This is the strongest argument for preventive drying.
The Preventive Care Shift
As treatment volume grew 95-fold, average moisture dropped 86% — clinics shifted from emergency repair to routine maintenance.
(471 → 44,559 in partial year)
(10.68 → 1.46 µL)
(up from 85.4% in 2019)
In 2019, Redux Pro was primarily used for emergency treatment of damaged devices. By 2022, clinics had shifted to routine preventive maintenance — drying as standard care, not last-resort repair. This is the trajectory Redux aims to accelerate.