Oxygen therapy:- low flow system , flow rate advantage and disadantage

Low flow system:-

Nasal cannula :-

Flow rate :- 1- 4 L/minute 

Advantage:- 

Inexpensive comfortable.

Disadvantage:- Nasal mucosa dryling dislodge easily.

Nasopharyngeal catheter:-

 

Flow rate:-

1-4 L/minute

Advantage:-

Does not require tracheostomy inexpensive.

Disadvantage:-

Mucosal irritation

Simple mask:-

Flow rate:- 

6-8 L/minute

Advantage:- simple to use inexpensive.

Disadvantage:- Poor fitting.

High Flow system:-

Transtracheal catheter(TTO):-

Flow rate:-

1 -4 L/minute

Advantage:-

More comfortable

Disadvantage:-

Frequent cleaning surgical intervention required.

Venturi mask:-

Flow rate :- 

2- 15 L/minute

Advantage:-

Additional humidity

Disadvantage:-

Must remove for eating and drinking.

Face tent:-

 Flow rate :-

8- 10 L/minute

Advantage:- Good humidity

Disadvantage:- Bulky.