Mattson-Garvin Model 220 Air Sampler 120V 60Hz 28.3 L/min Programmable Timer

Mattson-Garvin Model 220 Air Sampler 120V 60Hz 28.3 L/min Programmable Timer

The Mattson-Garvin Model 220 is a benchtop slit air sampler designed for environmental particle monitoring in cleanrooms, laboratories, and controlled environments. It draws ambient air through a precision 0.152 mm slit at a fixed flow rate of 28.3 litres per minute, depositing airborne particles — including viable microorganisms — onto a collection surface mounted on the rotating drum assembly beneath the glass dome. A built-in vacuum pump drives airflow, and the synchronous 1 RPH drive motor turns the collection surface at a consistent, calibrated rate for time-resolved sampling.

Specifications & What's Included

• Manufacturer: Mattson-Garvin (distributed by Barramundi Corp.)
• Model: 220
• Supply Voltage: 120V AC
• Frequency: 60 Hz
• Airflow Rate: 28.3 litres/minute
• Slit Width: 0.152 mm
• Drive Motor: 1 RPH synchronous motor
• Timer: Digital LED display programmable timer with Time Select (up/down) and Start/Stop buttons
• Power Switch: On/Off toggle switch with lighted red On indicator
• Flow Meter: Dwyer SCFH air rotameter (right side panel)
• Pump: Built-in vacuum pump
• Filter: Pall Ultipor N66 0.2 micron absolute disposable filter assembly, P/N DFA4001NAEY
• Glass dome collection chamber with rotating slit arm assembly and white sealing gasket ring
• Form Factor: Benchtop
• Housing Color: Mint green painted steel

Applications

The Mattson-Garvin Model 220 is used for environmental microbial and particle monitoring in cleanrooms, pharmaceutical manufacturing areas, hospital operating rooms, food processing facilities, and research laboratories. Slit samplers like the Model 220 are a standard method for collecting time-resolved air samples onto agar contact plates or other collection media — the rotating drum advances the collection surface beneath the slit at a known rate, allowing the operator to correlate particle deposition with specific time intervals during the sampling run. The programmable timer and fixed 28.3 L/min flow rate make it straightforward to standardize sampling protocols across multiple monitoring points. This type of instrument is commonly used alongside particle counters to give both viable (biological) and total particle counts for cleanroom qualification, environmental monitoring programs (EMPs), and regulatory compliance in FDA-regulated or ISO-classified spaces.