#1 10L Oxygen Concentrators
The main oxygen concentrators with their own built in compressor are the Respironics M10 and Drive DeVilbiss, both able to do 10L/min. Because they are available to many patients, they are often donated.
They are relatively inexpensive, common in parts. We recommend sticking to the main retail brands. There are foreign oxygen concentrators available, but in our evaluation of the price reduction, quality standards, and shipping, they are still not currently a viable option—though this may change in the future.
Due to the 2020 Covid Crisis, we are avoiding purchasing concentrators as the demand and worldwide need for home oxygen has exponentially increased. We expect a dramatic decrease in price over the next 3-4 years.
Our second recommendation is the EverFllo concentrator. These are slightly cheaper, but only go up to 5L/min. Two portable generators can also be connected in series, into a turbine ventilator to increase Fi02 as well as generate standalone 10L flow.
These are great for attaching to standalone ventilators in order to increase patient Fi02, and can boost off-grid systems from 50% into 100% Fi02.
#3 High Flow Nasal Cannula
Another option is the high flow humidified nasal oxygen. This has gained a lot of popularity in the past year due to the Covid Crisis.
The main two types of units are Vapotherm and Airvo 2. These units can deliver 40-60L/min. Although these are usually used as last ditch efforts to prevent intubation, they can be used in the field and can run on E-cyclinders. They do require humidification and so are difficult to maintain and use in the mission field due to tubing, cartridges, etc.
We don't deploy these, but felt it important to include as a possible option if ventilators are sparse.