Table 4.

Differences between BiPAP and portable ventilator.

BiPAP/CPAP	Portable ventilator
Uses blower to generate flow and achieve desired pressure	Uses pistons or turbines to generate desired volume or pressure
More easy to carry	Less easy to carry compared to BiPAP/CPAP
Better compensation for leaks	Compensation for leak is not as good as BiPAP/CPAP
Cannot generate high-peak pressures in case of worsening hypoxemia	Can generate high-peak pressures in case of worsening hypoxemia
High rates of energy consumption	Low energy consumption
No internal battery	Internal battery is present
Rebreathing may be present due to single limb circuit for both inspiration and expiration	No rebreathing due to two limbs circuit for both inspiration and expiration