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Lab Study: Bacteria Reduction Using Wheelchair Washers

The aerobic bacteria counts:	BEFORE	AFTER
Chair 1:	8,100,000	290
Chair 2:	1,200,000	30

Wheelchair washer lab study results show it reduces bacteria by 99.9% The director of housekeeping at the facility indicated that both chairs had been washed one month previously as part of their systematic cleaning of over 300 chairs/month.

Kidder indicated that such a build up of these invisible bacteria over a one month period was not uncommon.

In Kidder's judgment, the amazing results appeared to be due to a combination of consistent measurement of the wash and rinse chemicals and the "flood effect" of pressurized quantities of liquid hitting the chair surfaces, softening particles of matter and then separating these particles from their bacteria colony.

Other methods of cleaning surfaces leave microscopic amounts of food for growth of remaining bacteria.

When manufacturer's instructions are followed, their peristaltic chemical pumps remain primed at all times, and accurate to + or - 1/4 cc/cycle. This is an example of an event where more is not better, as too much detergent will increase surface tension of the liquid to the point that minute particles will not be removed!


MADE IN USA Since 1994	MEDCO Equipment, Inc. 105 Old Hwy 8, Unit 3 New Brighton, MN 55112 1-(800)-717-3626 Local (651)-639-8684 Fax (651) 639-8685 MEDCO^® and Medco Equipment^® are trademarks of MEDCO Equipment, Inc.