How many oxygen cylinders disposable oxygen equipment

400ml. Disposable oxygen equipment varies in capacity and price depending on the manufacturer and model. Generally speaking, disposable oxygen equipment has smaller oxygen cylinder capacity, usually 400 ml, 500 ml or 600 ml, while the price may vary from tens to hundreds of dollars. It is important to note that since disposable oxygen equipment can only be used once, you need to buy the right product for your usage needs and use it correctly.