# Effectiveness of Respirators Fit Factor in Healthcare Providers With and Without Beard

> **NCT04391010** · NA · COMPLETED · sponsor: **Universidad Complutense de Madrid** · enrollment: 63 (actual)

## Conditions studied

- Community Health Workers
- Filtration
- Masks

## Interventions

- **OTHER:** Surgical masks
- **OTHER:** Filtering respirators

## Key facts

- **NCT ID:** NCT04391010
- **Lead sponsor:** Universidad Complutense de Madrid
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2020-05-22
- **Primary completion:** 2020-06-01
- **Final completion:** 2020-06-01
- **Target enrollment:** 63 (ACTUAL)
- **Last updated:** 2020-06-02


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04391010

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04391010, "Effectiveness of Respirators Fit Factor in Healthcare Providers With and Without Beard". Retrieved via AI Analytics 2026-07-03 from https://api.ai-analytics.org/clinical/NCT04391010. Licensed CC0.

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