Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Mainstream monitoring using the novel method. An illustration of the NPPV cap ONE mask ® used in this study. The capnometer was calibrated in terms of the PETCO2 reading before each use of the NKV 330 ventilator (Nihon Kohden Tokyo, Japan). In addition, the mainstream PETCO2 sensor has a special anti-fog film on the specimen window, which guarantees accurate measurements for 72 h
