Vitalograph SafeTway One-Way Valve Mouthpieces x 20

• SafeTway Mouthpieces with Patented One-Way Valve
• Also ideal for use with peak flow meters
• Suitable for use with spirometers from Vitalograph, Micro Medical, MIR, Cosmed, Clement Clarke
• For expiratory only lung function measurements

SafeTway Mouthpieces with Patented One-Way Valve For expiratory only lung function measurements Also ideal for use with peak flow meters Suitable for use with spirometers from Vitalograph, Micro Medical, MIR, Cosmed, Clement Clarke 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.