After receiving from you Aranaire Model AL Air Purifier for the purpose of bacteriological testing, I am pleased to report the following results.

Using the slit sampling technique, the effects of the Aranaire device on bacterial air contamination _were tested. Bacterial counts as high as 1800 to 2000 were obtained while the class of the Medical Technology School _was in session. Some colonies of pathogens, such as hemolytic streptococci and staphylococci, were noted among the colonies or this mixed contamination.

The Aranaire device vas then put into action, and _within two hours, while the room vas still being used for class lectures, the colony count vas reduced to the 75-100 range. Also it is interesting that only one colony of hemolytic streptococci was seen at the end or the brief lecture period.

The Aranaire device also eliminated all the undesirable odors in the post-mortem room, both during and after autopsies

George J. Vareska Pathologist