Method of minimizing enzyme based aerosol mist using a pressure spray system

A method for application of a chemical composition including enzymes with a pressurized spraying system, the method comprising:

• preparing a water thin use solution of the chemical composition, the use solution comprising from about 0.0001 to about 0.2 wt. % enzyme-containing concentrate, a pH modifier, and a surfactant, wherein the total amount of surfactant is from about 0.1 to about 25 wt. %;
• applying the use solution as a spray through a spray nozzle to a hard surface to be cleaned using pressure of 25 to 75 psi and a flow rate of about 0.5 to about 0.75 gal/min,
• wherein the spray has a particle size of about 675 to about 1500 μm, and
• wherein the method maintains aerosolized enzymes below 60 ng/m3.

A method for application of a chemical composition including enzymes with a pressurized spraying system, the method comprising:

• preparing a water thin use solution of the chemical composition, the use solution comprising from about 0.0001 to about 0.2 wt. % enzyme-containing concentrate, a pH modifier, and a surfactant, wherein the total amount of surfactant is from about 1 to about 10 wt. %, and wherein the composition is substantially free of anti-mist components;
• applying the use solution as a spray through a spray nozzle to a hard surface to be cleaned using pressure of 25 to 75 psi and a flow rate of about 0.5 to about 0.75 gal/min,
• wherein the spray has a particle size of about 675 to about 1500 μm, and
• wherein the method maintains aerosolized enzymes below 60 ng/m3.