A heavy-duty vertical wooden box that releases positive air pressure out to the transfer cases. The lower part of the box has a protective fiber foam and UV-C Germicidal Lamp to pre-sanitize all possible contaminants (dust, microscopic mites, microbial spores) before it passes through the middle part of the box with H.E.P.A. (High-Efficiency Particulate Adsorption) Filter to absorb 99.97% of the particulates with the filtration efficiency of 0.3 μm which then blows positive airflow through the transfer case using a 2" turbo-type blower.
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It is designed to accommodate not only the transfer case but also the whole transfer/inoculating room. A single blower box can connect up to four transfer cases inside your laboratory. 
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