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Difference Between Respirator and Ventilator

November 7, 2017Posted byRanidu

关键的区别——口罩和呼吸机

Respirators and ventilators are two types of devices used in different circumstances to facilitate breathing.Although ventilators perform the act ofrespirationmechanically, respirators do not engage in respiration on their own. They only improve the quality of air by removing the contaminants in it.This can be taken as the key difference between respirator and ventilator. Keeping this difference in mind, respirators can be defined as a set of devices that facilitate respiration either by purifying the air available for the respiration or by providing a source of air whereas a ventilator is a machine that is used to move breathable air in and out of the lungs in the patients who are unable to breathe or have a difficulty in breathing.

CONTENTS

1.Overview and Key Difference
2.What is a Respirator
3.What is a Ventilator
4.Similarities Between Respirator and Ventilator
5.Side by Side Comparison – Respirator vs Ventilator in Tabular Form
6.Summary

What is a Respirator?

Respirators are a set of devices that facilitate the respiration by purifying the air available for the respiration or by providing a source of air.

The respirators that remove various contaminants from air and make air suitable for inspiration are called the air purifying respirators (APR). Gas masks that are used to purify the air of chemicals and poisonous gases and particulate respirators that can remove dust and other particles from the breathing air are included in this category.

Key Difference - Respirator vs Ventilator

Figure 01: Gas Mask Respirator

Airline respirators are used when the APRs are not capable of providing adequate protection to the user from the harmful substances contained in the inspiratory air. The use of airline respirators is recommended for the following occasions

  • When there are unknown chemicals in the air
  • When the concentration of chemicals in the air is unknown
  • In the presence of substances that are poorly absorbed by the cartridge of the APRs
  • When the amount of oxygen in the atmosphere is extremely low.

There are different types of airline respirators such as

  • Tight fitting full face and half mask respirators
  • Loose fitting hoods
  • Air supplied helmets
  • 自我公司ntained breathing apparatus (SCBA)

What is a Ventilator?

A ventilator is a machine that is used to move breathable air in and out of the lungs in patients who are unable to breathe or have a difficulty in breathing.

These machines are used transiently during surgical procedures where the patient is put under generalanesthesia. They are also used to facilitate breathing in patients who have intrinsic pulmonary diseases.

Difference Between Respirator and Ventilator

Figure 02: Ventilator

Modes of Mechanical Ventilation

Volume-cycled Mode

In this mode, the inhalation proceeds till an optimum tidal volume is achieved and then the expiration begins. A constant volume of air is supplied throughout the process. Thus, the pressure varies, changing the pulmonary compliance and airway resistance along with it.

Pressure-cycled Mode

一组吸气压力峰值和应用air moves into the lungs along a changing pressure gradient. When the maximum pressure is attained, passive expiration begins. The volume of air depends on the compliance of the thoracic cavity and the pulmonary tissues.

Improper ventilation can give rise to adverse effects such as volutrauma, air trapping, barotrauma, and oxygen toxicity.

What is the Similarity Between Respirator and Ventilator?

  • Both are devices used to facilitate and enhance the efficiency of respiration

What is the Difference Between Respirator and Ventilator?

Respirator vs Ventilator

Respirators are a set of devices that facilitate the respiration either by purifying the air available for the respiration or by providing a source of air. A ventilator is a machine that is used to move breathable air in and out of the lungs in the patients who are unable to breathe or have a difficulty in breathing.
Function
A respirator is a device that is used to filter and purify the air. Ventilator does not improve the quality of air. It performs the process of respiration in the patients with respiratory difficulties to sustain their life.

Summary – Respirator vs Ventilator

Respirators are a set of devices that facilitate the respiration either by purifying the air available for the respiration or by providing a source of air. A ventilator is a machine that is used to move breathable air in and out of the lungs in patients who are unable to breathe or have a difficulty in breathing. Unlike ventilators which actually perform the act of respiration, respirators despite do not help the mechanism of respiration. They only purify the air improving its quality. This is the main difference between respirator and ventilator.

Download PDF Version of Respirator vs Ventilator

You can download PDF version of this article and use it for offline purposes as per citation note. Please download PDF version hereDifference Between Respirator and Ventilator

References:

1. Hall, John E., and Arthur C. Guyton. Guyton and Hall textbook of medical physiology. 12th ed. Philadelphia, PA: Elsevier, 2016.

Image Courtesy:

1. “S10 Gas Mask Respirator” By Skiddie2003 at English Wikipedia – Transferred from en.wikipedia to Commons by Eingangskontrolle (Public Domain) viaCommons Wikimedia
2. “Ventilators” By National Heart Lung and Blood Institute (NIH) – National Heart Lung and Blood Institute (NIH), (Public Domain) viaCommons Wikimedia

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Filed Under:Featured,ProductsTagged With:Compare Respirator and Ventilator,Mechanical Ventilation Modes,Pressure-cycled Mode of Ventilation,Respirator,Respirator and Ventilator Differences,Respirator and Ventilator Similarities,Respirator Definition,Respirator Function,Respirator Types,Respirator Uses,Respirator vs Ventilator,ventilator,Ventilator Definition,Ventilator Function,Ventilator Types,Ventilator Uses,Volume-cycled Mode of Ventilation

About the Author:Ranidu

Ranidu is passionate about writing articles on medical topics in general parlance. His experience in communicating with the general public during his medical practice has enabled him to describe facts that a layman has to know about a particular disorder in a concise and understandable manner.

Comments

  1. Wendy Walbrechtsays

    March 31, 2020 at 3:23 pm

    Great article. Thanks.

    Reply

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