The low cost, low resistance SafeTway mouthpiece allows entry of expired air
into the measuring system, but not back to the test subject. This simple, yet
effective patented design prevents concerns of accidental inhalation of
pathogens.
The SafeTway is an inexpensive alternative to the bacterial viral filter for
expiratory only testing. It fits most pulmonary function test equipment,
including peak flow meters. An adaptor may be required.
The Mini SafeTway with a 22mm diameter mouthpiece is also available for
paediatric use or for elderly test subjects who have difficulty fitting their
mouth properly around the standard mouthpiece size.