Bacterial / Viral Filter AstraGuard™

Features

• The AstraGuard Bacterial/Viral Filter provides virtually perfect infection protection for expiratory and inspiratory spirometry testing
• 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
• Low resistance to air flow
• 99.9% Bacterial and viral efficiency
• Small, non-threatening size