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Mask study: do FFP2s lower your oxygen?

NCT ID NCT05188651

Knowledge-focused Sponsor: Catholic University of the Sacred Heart Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at whether wearing FFP2/N95 masks changes oxygen levels and pulse rate in dental professionals. Sixty dental workers took part, and researchers measured oxygen saturation and pulse while they wore the masks. The goal was to understand any short-term effects on breathing and heart rate during the COVID-19 pandemic.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
FFP2/N95 face masks
What this could lead to
If it works, this could help clarify whether wearing FFP2 masks is safe for dental professionals in terms of oxygen and heart rate.
What could go wrong
This is a small, completed study with only 60 dental professionals, so results may not apply to other groups or activities. It only measures short-term effects.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

60 people

The number who actually took part.

Started

Jan 2022

Finished

Sep 2022

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

all kind of dental professionals

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * dental professionals Exclusion Criteria: * subjects not signing informed consent * subjects unable to wear facemasks due to underlying conditions

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Conditions

The condition(s) this trial relates to.

COVID-19 Hypercapnia Hypoxia

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

COVID-19 pandemic Hypercapnia Hypoxia

Contacts and locations

Locations

  • Policlinico Universitario A. Gemelli

    Roma, RM, 00168, Italy

More trials for these conditions

Other studies related to the condition(s) this trial covers.