Portable Microbial Air Sampler, 100 L/min
Portable microbial air sampler that draws 100 L/min (±5%) through a 316 stainless steel multi-hole sampling port onto a Ø90 mm petri dish, with a color touchscreen, 5,000-record memory, USB export and battery or AC power.
Louise Corscadden, PhD
Director of Science · ConductScience
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Key Specifications
Full details →- Model fit
- 1 selectable configuration
- SKU family
- Assigned during quote
- Shipping box
- 38 × 17.5 × 31 cm
- Ordering
- Online checkout and quote request available
- Category
- Air Quality
- Build notes
- 316 stainless steel
The Portable Microbial Air Sampler collects airborne bacteria and fungi by multi-jet impaction with isokinetic sampling. It draws 100 L/min (±5%) of air through a sampling port of Ø0.7 mm straight microholes (no chamfer) and impacts it onto a standard Ø90 × 15 mm petri dish at 10.8 m/s. The many small holes reduce particle superposition and the error of colony counts, and the sampling port is made of 316 stainless steel, which reduces bacterial overlap and counting errors. It suits pharmaceutical plants, hospitals, biological products and food processing facilities, and public places.
A color touchscreen shows the sampling volume, sampling delay, sampling interval and flow rate. Sampling quantity is adjustable from 0 to 9,999 L, sampling period from 0 to 9,999 s and sampling delay from 0 to 255 s, and an acquisition chip keeps the sampling flow stable. The sampler stores 5,000 sets of data and exports them through its USB port. It runs for at least 4 hours on its battery or on AC 100–240 V, 50/60 Hz, works at 10–60 °C and 10–75% relative humidity, and measures 155 × 190 × 155 mm (W × D × H) at 2.1 kg. To change the dish, take off the sampling head.
How It Works
The air sampler works by multi-jet impaction with isokinetic sampling. It draws ambient air at 100 L/min ±5% through a sampling port of Ø0.7 mm straight microholes, and the air jets strike the agar in a Ø90 × 15 mm petri dish at 10.8 m/s. The controlled airflow ensures consistent sample collection volumes essential for quantitative analysis.
Particles carried by the jets impact onto the agar, where they are captured based on their size and inertial properties. Spreading the airflow over many small holes reduces particle superposition and so the error in colony counts. An acquisition chip keeps the sampling flow stable, and the touchscreen sets the sampling quantity, period, delay and interval.
Collected samples can then be processed using standard microbiological techniques including culture-based enumeration, molecular analysis, or microscopic examination depending on the specific research objectives and target organisms.
Features & Benefits
Flow Rate
- 100 L/min ±5%
Sampling Port
- 397 mesh, Ø0.7 mm microholes (straight, no chamfer)
Sampling Port Material
- 316 stainless steel
Impaction Velocity
- 10.8 m/s
Sampling Quantity
- 0–9,999 L (adjustable)
Sampling Period
- 0–9,999 s (adjustable)
Sampling Delay
- 0–255 s (adjustable)
Data Storage
- 5,000 sets
Data Export
- USB port
Display
- Color touchscreen
Petri Dish
- Ø90 × 15 mm
Operating Time on Battery
- ≥4 h
Operating Environment
- 10–60 °C, 10–75% RH
Power Supply
- AC 100–240 V, 50/60 Hz
External Size (W x D x H)
- 155 × 190 × 155 mm
Package Size (W x D x H)
- 380 × 175 × 310 mm
Net Weight
- 2.1 kg
Gross Weight
- 4 kg
Shipping weight
- 8.82 lb
Shipping box
- L: 38 cm
- W: 17.5 cm
- H: 31 cm
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Sampling Flow Rate | 100 L/min ±5% | Entry-level models often provide lower flow rates of 50-75 L/min | Higher flow rates enable faster sample collection and improved detection of low-concentration contaminants. |
| Flow Control Accuracy | ±5% at 100 L/min | Manual flow control systems may have ±10-15% variation | Precise flow control ensures reproducible sample volumes essential for quantitative microbial analysis. |
| Power Options | AC 100–240 V or battery, at least 4 hours on battery | Basic models often require continuous AC power connection | Battery operation enables field sampling and remote location deployment without infrastructure requirements. |
| Weight and Portability | 2.1 kg net weight with compact 155 × 190 × 155 mm dimensions | Comparable units may weigh 3-5kg with larger form factors | Lightweight design facilitates transport between multiple sampling locations during field studies. |
This microbial air sampler combines 100 L/min ±5% impaction sampling through a 316 stainless steel sampling port with a color touchscreen, 5,000-record memory with USB export, and battery or AC power in a compact 2.1 kg unit.
Practical Tips
Verify flow rate accuracy using a certified external flow meter before critical sampling campaigns, particularly after transport or extended storage.
Why: Flow rate precision directly affects sample volume calculations and quantitative analysis accuracy.
Clean and inspect pump intake regularly for debris or biological buildup that could affect flow characteristics.
Why: Obstructions can reduce sampling efficiency and compromise flow rate stability during collection periods.
Position the sampler at breathing zone height (1.5m) and away from direct air currents or HVAC outlets when assessing human exposure risks.
Why: Proper positioning ensures representative samples of the air actually inhaled by occupants in the environment.
Monitor battery voltage during extended sampling runs and maintain spare charged batteries for critical field deployments.
Why: Battery depletion during sampling can result in incomplete collection and compromised data quality.
Record ambient temperature, humidity, and wind conditions during sampling as these factors affect particle dispersion and collection efficiency.
Why: Environmental conditions influence microbial viability and distribution, affecting interpretation of sampling results.
Use appropriate PPE and follow biosafety protocols when sampling in potentially contaminated environments or handling collected samples.
Why: Biological air sampling may concentrate pathogenic organisms requiring containment and handling precautions.
Check for pump seal integrity if flow rate deviates from specification, as worn seals can cause pressure losses.
Why: Seal degradation is a common cause of flow rate drift and reduced sampling performance over time.
Setup Guide
What’s in the Box
- Microbial air sampler main unit
- AC power supply (100–240 V, 50/60 Hz)
- Rechargeable battery (pre-installed)
- User manual and operation guide
- Calibration certificate (typical)
- Transport case (typical)
Warranty
ConductScience provides a standard one-year manufacturer warranty covering defects in materials and workmanship, along with comprehensive technical support for operational questions and troubleshooting assistance.
Compliance
References
Background reading relevant to this product:
What collection media types are compatible with this air sampler?
It collects onto agar in standard Ø90 × 15 mm petri dishes. Choose the agar medium to suit the target organisms and downstream analysis.
How accurate is the flow rate control and does it require regular calibration?
Flow rate is held at 100 L/min ±5%. Regular verification with external flow meters is recommended, with formal calibration frequency depending on usage intensity and accuracy requirements.
Can the unit operate in high humidity or temperature environments?
It is rated for 10–60 °C and 10–75% relative humidity. Avoid condensation in high humidity applications.
What is the particle size collection efficiency for different microorganisms?
Collection efficiency varies with particle size, media type, and flow dynamics. Consult product datasheet for specific efficiency curves and validate performance for your target organism size range.
How does battery performance change with temperature and age?
The battery runs the sampler for at least 4 hours. Performance may decrease in extreme temperatures or with battery aging, requiring monitoring for critical applications.
How is the petri dish changed?
Take off the sampling head and change the dish. The sampler takes standard Ø90 × 15 mm petri dishes.
What data logging or connectivity features are available?
The sampler stores 5,000 sets of sampling data and has a USB port for exporting them.
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