# Respiratory Effort Belt For Polysomnography
> **Product code: SFK** · Class II — Moderate Risk (510(k) clearance required) · Neurology · 21 CFR 882.1400
## Classification
- **FDA Product Code:** SFK
- **Device class:** Class II — Moderate Risk (510(k) clearance required)
- **Regulation:** 21 CFR 882.1400
- **Review panel:** AN
- **Medical specialty:** Neurology
- **Submission type:** 1
- **GMP exempt:** N
- **Life sustaining:** N
- **Implant:** N
- **Third-party review:** N
## Definition

To assess respiratory/breathing effort by measuring the movement of chest and abdominal walls. The belts function as accessories to sleep/polysomnography (PSG) and home sleep apnea test (HSAT) systems.

## Market data
- **Cleared 510(k) submissions:** 1
- **Registered establishments:** 1
## Source
- [FDA Device Classification](https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpcd/classification.cfm?ID=SFK)
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