The effect of the mask on blood oxygen

Evaluation of serum oxygen level following the use of three-layer, five-layer and n95 masks after intervals of 1,2,3 hours in dental students

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20211021052832N1

Enrollment

Registered

2021-11-16

Start date

2021-11-07

Completion date

Unknown

Last updated

2021-11-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Blood serum oxygen level changes after using face masks..

Interventions

Intervention 1: Control group: Control group 1: Blood Serum oxygen level in students is measured before applying the face mask. Intervention 2: Intervention group 1: Students are asked to put a three-

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Complete health satisfaction in the study

Exclusion criteria

Exclusion criteria: Heart, respiratory, kidney disease, smoking

Design outcomes

Primary

Measure	Time frame
Blood serum oxygen level before usage of 3-layers, 5-layers and N95 face masks. Timepoint: Before usage of 3-layers, 5-layers and N95 face masks. Method of measurement: Pulse oximetry.;Blood serum oxygen level after 1 hour usage of 3-layers, 5-layers and N95 face masks. Timepoint: After usage of 3-layers, 5-layers and N95 face masks for 1 hour. Method of measurement: Pulse oximetry.;Blood serum oxygen level after 2 hours usage of 3-layers, 5-layers and N95 face masks. Timepoint: After usage of 3-layers, 5-layers and N95 face masks for 2 hour. Method of measurement: Pulse oximetry.;Blood serum oxygen level after 3 hours usage of 3-layers, 5-layers and N95 face masks. Timepoint: After usage of 3-layers, 5-layers and N95 face masks for 3 hour. Method of measurement: Pulse oximetry.	—

Measure

Time frame

Blood serum oxygen level before usage of 3-layers, 5-layers and N95 face masks. Timepoint: Before usage of 3-layers, 5-layers and N95 face masks. Method of measurement: Pulse oximetry.;Blood serum oxygen level after 1 hour usage of 3-layers, 5-layers and N95 face masks. Timepoint: After usage of 3-layers, 5-layers and N95 face masks for 1 hour. Method of measurement: Pulse oximetry.;Blood serum oxygen level after 2 hours usage of 3-layers, 5-layers and N95 face masks. Timepoint: After usage of 3-layers, 5-layers and N95 face masks for 2 hour. Method of measurement: Pulse oximetry.;Blood serum oxygen level after 3 hours usage of 3-layers, 5-layers and N95 face masks. Timepoint: After usage of 3-layers, 5-layers and N95 face masks for 3 hour. Method of measurement: Pulse oximetry.

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Countries

Iran (Islamic Republic of)

Contacts

Public ContactEbi Fakouri Jouybari

Islamic Azad University

ebi.fakouri1987@yahoo.com+98 21 2256 4571

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026