Flexicare Adult Bacterial Viral Filter + HME Filterhttps://www.surginatal.com/brands/flexicare/flexicare-adult-bacterial-viral-filter-hme-filter/The Flexicare Adult Bacterial Viral filter provides 99.999% efficiency within a compact, lightweight rounded design ideal for patient end-use. The rounded shape, with no sharp edges, reduces the risk of pressure marks on the patient.