Changes

# Anything that decreases the efficiency of your breathing

# EERS ([[Enhanced Expiratory Rebreathing Space (EERS)|Enhanced Expiratory Rebreathing Space]]) The theory is that the use of positive air pressure, especially with pressure support (PS) or exhale pressure relief (EPR) can result in a drop in carbon dioxide in the blood, which through various respiratory feedback mechanisms can result in the emergence of central apnea (CA). By adding dead-spece or a larger volume EERS does the via a mask modification which slightly increases the amount of CO2 that is rebreathed. This effectively eliminated the central apnea. Note that this is a process that your medical team has not likely heard of and because it requires a mask modification is frowned on by many in the medical profession. I'll add that this process is used extensively by a few doctors in cooperation with a few DMEs and Sleep Centers.