How It Works:

The ImpactAir-140 draws air at a high velocity through a very narrow inlet slit. As air passes through, particles, including microbes, impact directly onto the surface of an agar in a Petri dish. The dish rotates slowly under the inlet, ensuring that fresh agar surfaces are consistently exposed to the incoming air. This method significantly reduces the chance of 'twin impingement'—a common issue in sieve type samplers where two microbes can land at the same spot and appear as a single colony upon incubation.

Key Features:

• Uses Larger 14 cm Petri Dishes: Allows for extended sampling periods on a single dish, accommodating deep fill agar plates for several hours of sampling.
• Programmable Sampling Time: Flexibility to set sampling from a few minutes to many hours, with a standard 1 m³ volume sampled in just over 35 minutes at a flow rate of 1 cubic foot per minute.
• Precision Sensing and Control: The first in its class to automatically adjust the distance between the inlet and the agar surface during operation, maintaining a consistent d50 sampling efficiency, as validated by Public Health England (PHE) through rigorous independent testing.
• Particle and Vibration Control: Designed to operate without shedding particles, making it suitable for use alongside particle counting devices and sensitive equipment like balances, thanks to its very low vibration.

The ImpactAir-140 stands out in its field for its unique design and operational efficiency, ensuring that critical environments remain under stringent control for air quality. This system not only meets but exceeds the demands of high-grade area monitoring, providing peace of mind with its robust performance and reliable results. Whether you need precise microbial monitoring or integration into sensitive environments, the ImpactAir-140 delivers exceptional performance every time.