AstraGuard Filter

The AstraGuard™ bacterial/viral filter provides virtually perfect infection protection for expiratory and inspiratory spirometry testing. Its single patient use greatly reduces costly and time consuming disinfection procedures. This easy-to-use disposable mouthpiece incorporates a highly efficient woven filter that virtually eliminates cross contamination from patient to patient and from patient to health care professional.

• 99.9% bacterial and viral efficiency
• Low resistance to air flow
• Small, non-threatening size
• Comfortable oval mouthpiece
• Reduces risk of cross contamination
• Less time spent disinfecting equipment