The Trio.Bas™ instruments utilize the impaction method of air sampling. The air, passing through an aspirating head, impacts onto an appropriate agar plate that collects bacteria or other organic substances possibly present in the sampled area.

• 100 or 200 liter per minute format for contact plates
• Designed for use with Isolators or RABS (Restricted Access Barrier Systems)
• Option to add two additional satellites
• Charges via cable; sample up to 70000 liters on a single battery charge
• Use separate media at the same time to determine bacterial and fungal counts
• Can monitor separate cleanrooms with a single external command unit

Per USP 797, 'Volumetric active air sampling of all classified areas using an impaction device must be conducted in each classified area [e.g., ISO Class 5 PEC and ISO Class 7 and 8 room(s)] during dynamic operating conditions at least every six months.'