SDI Diagnostics #29-7990-050 Bacterial / Viral Filter AstraGuard™ FILTER, ASTRAGUARD (50/BX) Provides virtually perfect infection protection for expiratory and inspiratory spirometry testing 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% Bactierial and viral efficiency Low resistance to air flow Small, non-threatening size Comfortable oval mouthpiece Manufacturer # 29-7990-050 Brand AstraGuard™ Manufacturer SDI Diagnostics Country of Origin United States Application Bacterial / Viral Filter Specifications Disposable, Single-Patient Use UNSPSC Code 42272219
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