Microbiological Environmental Monitoring Products

Active Air Microbial Sampler

A regulated sieve-impaction sampler that draws a measured cleanroom air volume onto agar for recoverable viable microorganism monitoring.

Regulated Active Sampling
Sieve Impaction Collection
Standard Culture Plates
Portable Cleanroom Operation

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Product Introduction

The Active Air Microbial Sampler pulls a programmed volume of ambient air through a precision-perforated stainless sampling head. Accelerated air jets direct microorganisms onto the surface of agar held in a standard Petri dish or compatible contact-plate adapter. A closed-loop flow sensor compensates for air-density and plate-loading effects so the indicated volume remains controlled during the sample. Its smooth metal enclosure, rechargeable power and downloadable sample records support routine viable monitoring at multiple cleanroom locations.

Key Features

A multi-orifice impactor distributes the air stream over the culture medium instead of concentrating collection at one point.

Closed-loop flow regulation maintains the selected sample rate as operating resistance changes.

The removable stainless sampling head can be cleaned and sterilized separately from the instrument body.

Programmable volumes and time-stamped records reduce manual transcription during monitoring rounds.

Customer Product Concerns

Representative viable-air results depend on controlled sample volume, recoverable impaction and clean handling of the culture plate and sampling head.

Unstable flow makes colony results difficult to compare between locations or monitoring rounds.Continuous flow measurement and automatic regulation keep the aspirated volume within the configured operating range.

A concentrated air jet can dry or overload a small area of culture medium.A perforated sieve head distributes hundreds of low-volume jets across the agar surface.

Handling the plate near exposed internal components increases contamination risk.A removable head and accessible plate holder allow straightforward aseptic loading and unloading.

Handwritten sample details can be incomplete or associated with the wrong location.Stored date, time, volume, location and status fields provide a traceable record for transfer to the monitoring workflow.

Typical Applications

Aseptic processing cleanroomsPharmaceutical filling suitesBiotechnology laboratoriesControlled food and cosmetics production

Technical Parameters

Typical construction and configurable dimensions for a portable active air microbial sampler are listed below.

Core Material	Anodized aluminum instrument body with 316L stainless steel perforated sampling head
Panel Thickness	100-140 mm body diameter
Effective Width	100-160 mm overall instrument width
Maximum Length	Up to 300 mm overall height including handle
Steel Facing Thickness	1.0-2.0 mm stainless sampling-head wall
Core Density	2650-8000 kg/m³ across aluminum and stainless structural components
Thermal Conductivity	14-220 W/(m·K) across stainless steel and aluminum components
Surface Finish	Natural anodized or cleanroom-compatible coated body with electropolished or satin stainless head
Joint Type	Removable locking impactor head with adjustable culture-plate holder and sealed service connections
Customization	Available based on the intended application and operating environment.

Available Options

100 L/min nominal flow configuration90 mm Petri dish or contact-plate adapterStainless or anodized enclosureBarcode and data-export functions

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