| US 7,507,299 B2 | ||
| Apparatuses, systems and processes for surface cleaning | ||
| John Wadsworth, Bountiful, Utah (US); and Stefan Münch, Chicago, Ill. (US) | ||
| Assigned to Nalco Company, Naperville, Ill. (US) | ||
| Filed on May 02, 2005, as Appl. No. 11/120,086. | ||
| Application 11/120086 is a division of application No. 10/658719, filed on Sep. 09, 2003, granted, now 6,945,261. | ||
| Prior Publication US 2005/0194024 A1, Sep. 08, 2005 | ||
| Int. Cl. B08B 3/02 (2006.01) | ||
| U.S. Cl. 134—26 [134/29; 134/22.12; 134/22.18] | 24 Claims |
| 1. A method of cleaning an air handler system comprising the steps of:
applying a chemical cleaning agent to an air handler system surface in need of cleaning at an operating pressure that is about
60 to about 600 PSI;
rinsing the air handler system surface with water or a rinse solution supplied at the operating pressure; and
applying a bio-cleaning agent to the surface at an operating pressure that is from about 60 to about 600 PSI subsequent to
rinsing, wherein the bio-cleaning agent is selected from the group consisting of a biocide, a biostatic, solutions thereof
and mixtures thereof.
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