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Related Concept Videos

Oxygen Delivering System I: Nasal Cannula and Face Mask01:26

Oxygen Delivering System I: Nasal Cannula and Face Mask

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The human body requires oxygen to function, and when the natural process of respiration is hindered, external devices, including the following, are needed to help deliver this vital gas.
Nasal Cannula
A nasal cannula is a lightweight tube split at one end into two prongs and placed in the nostrils. It is typically used to deliver low to medium levels of oxygen.
Suggested flow rate: The suggested flow rate for a nasal cannula typically ranges between 1 and 6 L/min.
Oxygen percentage setting:...
911
Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen01:16

Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen

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Oxygen therapy is a pivotal aspect of medical care, particularly for patients with respiratory ailments. Two prominent oxygen-delivering systems include the Venturi mask and the transtracheal oxygen catheter.
Venturi Mask
The Venturi mask, named after the Venturi effect, is designed to deliver precise oxygen concentrations. It consists of a large tube with an oxygen inlet that narrows down, causing a pressure drop that pulls air in through adjustable side ports. The mask is a lightweight,...
1.2K
Administering Oxygen by Mask01:30

Administering Oxygen by Mask

1.1K
Administering Oxygen by Mask
Administering oxygen by mask is a common nursing intervention that provides supplemental oxygen to patients with respiratory distress or chronic lung conditions. This procedure involves delivering oxygen at a specified rate through a face mask connected to an oxygen source.
Equipment
The equipment necessary for this procedure includes:
1.1K
Oxygen Delivering System III: Tracheostomy and T-piece01:23

Oxygen Delivering System III: Tracheostomy and T-piece

3.3K
Oxygen delivery is critical in clinical care, especially for patients with respiratory disorders or those undergoing surgical procedures. Various systems, such as tracheostomy and the T-piece, deliver oxygen to the lungs, ensuring adequate arterial oxygenation.
Tracheostomy
A tracheostomy is a surgically created opening (stoma) in the anterior part of the trachea. It is used to establish a patient airway, bypass an upper airway obstruction, simplify the removal of secretions, permit long-term...
3.3K
Administering Oxygen by Nasal Cannula01:29

Administering Oxygen by Nasal Cannula

1.5K
Oxygen therapy is critical to patient care, especially for those struggling with respiratory issues. This intervention increases the oxygen concentration in the lungs, enhancing the amount of oxygen transported to the body's tissues. One standard method of delivering supplemental oxygen is through a nasal cannula, a non-invasive device that provides low to medium oxygen concentrations.
Nasal Cannulas
A nasal cannula is a lightweight tube split into two prongs placed in the nostrils,...
1.5K
Gas Exchange and Transport01:20

Gas Exchange and Transport

74.5K
Gas exchange, the intake of molecular oxygen (O2) from the environment and the outflow of carbon dioxide (CO2) into the environment, is necessary for cellular function. Gas exchange during respiration occurs largely via the movement of gas molecules along pressure gradients. Gas travels from areas of higher partial pressure to areas of lower partial pressure. In mammals, gas exchange occurs in the alveoli of the lungs, which are adjacent to capillaries and share a membrane with them.
74.5K

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Related Experiment Video

Updated: Nov 9, 2025

A Novel Inhalation Mask System to Deliver High Concentrations of Nitric Oxide Gas in Spontaneously Breathing Subjects
05:46

A Novel Inhalation Mask System to Deliver High Concentrations of Nitric Oxide Gas in Spontaneously Breathing Subjects

Published on: May 4, 2021

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Particulate generation with different oxygen delivery devices.

Scott A Helgeson1, Augustine S Lee1, Kaiser G Lim2

  • 1Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Jacksonville, FL, USA.

Respiratory Medicine
|April 9, 2021
PubMed
Summary
This summary is machine-generated.

Noninvasive oxygen devices like nasal cannulas and masks did not significantly increase airborne particles. This suggests they may not pose a higher exposure risk for generating aerosols during the Coronavirus pandemic.

Keywords:
AerosolCoronavirusDropletsHigh flow oxygenParticle generationParticle measurement

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Last Updated: Nov 9, 2025

A Novel Inhalation Mask System to Deliver High Concentrations of Nitric Oxide Gas in Spontaneously Breathing Subjects
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Fabrication and Operation of an Oxygen Insert for Adherent Cellular Cultures
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Evaluating Regional Pulmonary Deposition using Patient-Specific 3D Printed Lung Models
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Area of Science:

  • Respiratory Medicine
  • Infectious Disease Control
  • Biomedical Engineering

Background:

  • The Coronavirus pandemic highlighted high mortality in mechanically ventilated patients, increasing interest in noninvasive oxygenation.
  • Noninvasive oxygen devices theoretically pose an increased exposure risk due to potential particulate generation.
  • Quantifying particulate generation from various oxygen delivery systems is crucial for infection control.

Purpose of the Study:

  • To quantify particulate generation from different noninvasive oxygen devices.
  • To assess the risk of aerosol/droplet generation by nasal cannulas, OxyMask™, non-rebreathing masks, and high-flow systems.
  • To inform infection control strategies during respiratory illnesses.

Main Methods:

  • Prospective single-center study with ten healthy adult volunteers.
  • Particle counts measured using a light scattering particle counter in a negative pressure room.
  • Testing included nasal cannula, OxyMask™, non-rebreathing mask, and high-flow systems at various distances and flow rates.

Main Results:

  • Nasal cannula and high-flow systems showed no significant difference from ambient particle levels.
  • OxyMask™ and non-rebreathing masks showed slight, non-significant increases in particles at close range, decreasing with distance.
  • No tested oxygen device generated significantly higher particle concentrations than baseline room measurements.

Conclusions:

  • Common noninvasive oxygen devices do not appear to generate additional aerosols or droplets above baseline.
  • Further research is needed to definitively determine the infectious risk associated with these devices.
  • Findings support the continued use of these devices while emphasizing the need for comprehensive infection control measures.