Accueil / Équipements / Préleveur microbiologique d’air / SED-6QW-A Six-Stage Airborne Microbial Sampler

SED-6QW-A

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SED-6QW-A

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SED-6QW-A — SED-6QW-A Six-Stage Airborne Microbial Sampler

La description complète de ce modèle est encore en cours de traduction. Consultez les détails en anglais ou demandez des informations à notre équipe. English

SED-6QW-A is a six-stage sieve impactor airborne microbial sampler. It mimics the human respiratory tract anatomy and aerodynamic physiology, using inertial impaction to size-fractionate airborne microbial particles onto

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Fonctionnement

The impactor consists of 6 aluminium-alloy discs each with 400 precision holes arranged in concentric rings; hole size decreases stage by stage. An agar plate is placed below each disc; discs are sealed with O-rings and secured by spring hooks. Air containing microbial particles enters the top sampling port and is progressively accelerated through each stage. Particles of different aerodynamic sizes impact onto corresponding agar surfaces: Stages 1–2 simulate upper respiratory tract capture (particles >7 µm–>4 µm); Stages 3–6 simulate lower respiratory tract capture (down to 0.65 µm). Relative humidity increases from 39% at Stage 1 to 88% at Stage 6, favouring survival of fragile pathogens — especially viruses.

Processus de fonctionnement

1The impactor consists of 6 aluminium-alloy discs each with 400 precision holes arranged in concentric rings; hole size decreases stage by stage.

2An agar plate is placed below each disc; discs are sealed with O-rings and secured by spring hooks.

3Air containing microbial particles enters the top sampling port and is progressively accelerated through each stage.

4Particles of different aerodynamic sizes impact onto corresponding agar surfaces: Stages 1–2 simulate upper respiratory tract capture (particles >7 µm–>4 µm); Stages 3–6 simulate lower respiratory tract capture (down to 0.65 µm).

5Relative humidity increases from 39% at Stage 1 to 88% at Stage 6, favouring survival of fragile pathogens — especially viruses.

Caractéristiques techniques

Caractéristiques de la variante : SED-6QW-A

Caractéristiques

Modèle

SED-6QW-A

Détails de conformité

Capture rate ≥98%; flow accuracy ≤5%; noise ≤60 dB; timer accuracy <1%; recommended by experts as international standard sampler

Matériaux

Matériaux du bâti

Aluminium alloy impactor discs

Caractéristiques principales

Six-stage sieve impactor design; 400 circular-array precision holes per stage

Size-fractionated particle capture: 0.65 µm to >7.0 µm range

Capture rate ≥98% — far exceeding single-stage impactors

Circular nozzles achieve higher sampling efficiency than slit nozzles

Sampling flow 28.3 L/min (adjustable); flow accuracy ≤5%

Electronic timer range 1–99 hours; timer accuracy <1%

Noise ≤60 dB

AC/DC dual-power supply for field portability

Relative humidity increases stage by stage (39%→88%), favouring survival of fragile pathogens (especially viruses)

International standard airborne microbial sampler — recommended by experts

Six-stage particle-size data — key index for assessing airborne microbial hazards

Mimics human respiratory tract anatomy; replicates particle penetration and deposition sites

Capture rate ≥98% — covers particle size ranges unreachable by single-stage samplers

Applications

Airborne microbial particle size-fractionated sampling

Biocleanroom (pharma/vaccine) environmental monitoring

Epidemic prevention / public health airborne microbial monitoring

Fermentation industry environmental monitoring

Airborne microbiology research and teaching

Secteurs

Pharmaceuticals

Epidemic prevention / CDC

Bioclean / Hospital

Fermentation industry

Research and teaching

SED

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