# Face Masks and Oxygen Levels - What Happens During Exercise? (Masks in Exercise - a RandomIsed Trial)

> **NCT04932226** · NA · COMPLETED · sponsor: **University of Oxford** · enrollment: 72 (actual)

## Conditions studied

- Impact of Masks on Oxygen Levels

## Interventions

- **DEVICE:** cloth mask
- **DEVICE:** surgical mask
- **DEVICE:** FFP2 respirator

## Key facts

- **NCT ID:** NCT04932226
- **Lead sponsor:** University of Oxford
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-06-19
- **Primary completion:** 2022-01-10
- **Final completion:** 2022-01-10
- **Target enrollment:** 72 (ACTUAL)
- **Last updated:** 2022-06-29

## Collaborators

- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04932226

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04932226, "Face Masks and Oxygen Levels - What Happens During Exercise? (Masks in Exercise - a RandomIsed Trial)". Retrieved via AI Analytics 2026-07-26 from https://api.ai-analytics.org/clinical/NCT04932226. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*