Merck MAS-100 Air Sampler

This MAS-100 NT Microbial Air Monitoring System works as follows:
Air is sucked in through a perforated lid and ends up on the surface of a growth medium, this is done in a standard 90 mm ​petri dish ​or a 60 mm contact plate.
Micro-organisms on the petri dish or contact plate are then put in an incubator, and the colonies are counted after the incubation period.
The system sucks in air with a constant value of 100 l/min.
This Merck MAS-100 Air Sampler is equipped with a new battery.
Diameter sample head: Ø 10 cm
Dimensions (H x Ø): 25 x 11 cm.