Table 1

Driving pressures reported in an Internet-based field survey of international centres using the Mefar dosimeter

CentreDriving pressure kPa
ECRHS Sweden 1180#
ECRHS Sweden 2210
Healthwise Australia 1245
Healthwise Australia 2215
Healthwise Australia 3220
ECRHS Australia 1.1180
ECRHS Australia 1.2186
ECRHS Australia 1.3207
ECRHS USA180
ECRHS UK174
ECRHS Spain70+
ECRHS Spain 2150
ECRHS Spain 3.1210
ECRHS Spain 3.2167
ECRHS Spain 470+
  • ECRHS: European Community Respiratory Health Survey

  • #: Compressor replaced by “medical air” from wall

  • : Compressor replaced with air tank

  • +: Subsequently under repair