Microbial (Viable) Cascade Impactors
Microbial (Viable) Cascade Impactor (Air Sampler) is a multi-orifice. Microbial (Viable) Cascade Impactors are used to measure the concentration and particle size distribution of aerobic bacteria and fungi in the intramural or ambient air. These units have been widely used for enumerating the viable particles in a microbial aerosol.
Viable particles can be collected on a variety of bacteriological agar and incubated for counting or identification. These samplers are designed so that all particles collected, regardless of physical size, shape, or density are sized aerodynamically and can be directly related to human lung deposition. The multi-orifice cascade impactor size-selective feature permits the assessment of an airborne contaminant in relation to its disease potential arising from its deposition site within the respiratory tract.
We have three models; CTZ-MCI-6 Model Six-Stage, CTZ-MCI-2 Model Two-Stage, and CTZ-MCI-1 Model One-Stage Microbial (Viable) Cascade Impactors. All these models Microbial (Viable) Cascade Impactors require glass Petri dishes. The Petri dishes are removed after the sampling, incubated, and counted by an accepted method.
Features
- to size separates viable particles for the collection and assay of aerobic species of bacteria and fungi.
- Corrosion-resistant, easily sterilizable.
- Completely portable, its weight (without pump) is approximately 2.2 lbs (1 kg).
- Verifiable flow rate.
- Easy to use.
Applications
- Indoor Air Quality Studies at Food Processing Areas
- Medical Treatment and Hospital Environments
- Office environments
- Filter and Clean Room Efficiency Studies
- Pharmaceutical Production
- Animal Care Laboratories
- Cosmetic Manufacturing
- Grain Processing and Transportation
Range of particle sizes collected by each stage (in microns)
| Stage | Orifice Diameter (mm) | Particle Size (µm) |
| Stage 1 | 1.18 | : 7.0 and above |
| Stage 2 | 0.91 | : 4.7 to 7.0 |
| Stage 3 | 0.71 | : 3.3 to 4.7 |
| Stage 4 | 0.53 | : 2.1 to 3.3 |
| Stage 5 | 0.34 | : 1.1 to 2.1 |
| Stage 6 | 0.25 | : 0.65 to 1.1 |
CTZ-MCI-6 Six-Stage Microbial (Viable) Cascade Impactor Six-Stage Microbial (Viable) Cascade Impactor CTZ-MCI-6 is constructed with six aluminum stages that are held together by three spring clamps and sealed with 0-ring gaskets. Each impactor stage contains multiple-precision drilled orifices. When air is drawn through the sampler, multiple jets of air in each stage direct any airborne particles toward the surface of the agar collection surface for the stage. The sizes of the jet orifices are constant within each stage but are smaller in each succeeding stage, the range of particle sizes collected on each stage depends on the jet velocity of the stage and the cutoff of the previous stage. Any particle not collected on the first stage follows the air stream around the edge of the Petri dish to the next stage.
CTZ-MCI-2 Two-Stage Microbial (Viable) Cascade Impactor Two-Stage Microbial (Viable) Cascade Impactor CTZ-MCI-2 is constructed with two aluminum stages that are held together by three spring clamps and sealed with 0-ring gaskets. Each impactor stage contains multiple-precision drilled orifices. When air is drawn through the sampler, multiple jets of air in each stage direct any airborne particles toward the surface of the agar collection surface for the stage. The sizes of the jet orifices are constant within each stage but are smaller in each succeeding stage, the range of particle sizes collected on each stage depends on the jet velocity of the stage and the cutoff of the previous stage. Any particle not collected on the first stage follows the air stream around the edge of the Petri dish to the next stage.
CTZ-MCI-1 One-Stage Microbial (Viable) Cascade Impactor One-Stage Microbial (Viable) Cascade Impactor CTZ-MCI-1 is constructed with one aluminum stage that is held together by three spring clamps and sealed with 0-ring gaskets. The stage contains multiple-precision drilled orifices. When air is drawn through the sampler, multiple jets of air in the stage direct any airborne particles toward the surface of the agar collection surface for the stage.
CTZ-MCI-6 Six Stage Microbial (Viable) Cascade Impactor is constructed with six aluminum stages that are held together by three spring clamps and sealed with 0-ring gaskets. Each impactor stage contains multiple-precision drilled orifices. When air is drawn through the sampler, multiple jets of air in each stage direct any airborne particles toward the surface of the agar collection surface for the stage. The sizes of the jet orifices are constant within each stage but are smaller in each succeeding stage, the range of particle sizes collected on each stage depends on the jet velocity of the stage and the cutoff of the previous stage. Any particle not collected on the first stage follows the air stream around the edge of the Petri dish to the next stage.
Ordering Information
| Part Number | Description |
| CTZ-MCI-6-11 | Six Stage Microbial Viable Cascade Impactor with vacuum pump-110V and carrying case-L |
| CTZ-MCI-6-12 | Six Stage Microbial Viable Cascade Impactor with vacuum pump-220V and carrying case-L |
| CTZ-MCI-6-10 | Six Stage Microbial Viable Cascade Impactor with carrying case-M without vacuum pump |
| CTZ-MCI-6-00 | Six Stage Microbial Viable Cascade Impactor without vacuum pump and carrying case |
| CTZ-CASE-01 | Carrying case-Medium-Interior dimensions: 30,2x22,9x13,5 cm (11-7/8in.x9in.x5-5/16in.) |
| CTZ-CASE-02 | Carrying case-Large-Interior dimensions: 37,8x27x15,6 cm (14-7/8in.x10-5/8in.x6-1/8in.) |
| CTZ-PUMP-01 | Vacuum Pump 1 cfm (28.3 L/min)-110V |
| CTZ-PUMP-02 | Vacuum Pump 1 cfm (28.3 L/min)-220V |
Microbial Cascade Impactor Flyer
