Our website includes a free to use online count correction feature. This will enable MicroBio air sampler users to quickly calculate airborne CFU concentrations and positive hole count correction on visible colony growths in a petri dish or contact plate following microbial air sampling. It is suitable for correcting counts obtained from samples taken using the MicroBio MB1, MB2, MB2-RSH and MB2-HiFlow bioaerosol samplers with any sampling head option. Once a sample has been taken, the contact plate or petri dish should be removed immediately from the MicroBio, the lid replaced on the plate and sealed. A note should be made on the lid regarding time, location Read More …