Manual sprayer with dual bag-on-valve assembly

A manual spray dispenser for dispensing a mixture of two compositions comprising:

• a container having a first and second chamber and a single dispensing spray outlet for dispensing controlled amounts of liquids from each of the first and second chambers;
• at least one of the first and second chambers has a separator in the form of a pouch for physically separating the contents of the chamber from an interior surface of the chamber;
• one of the first and second chambers contains a first composition;
• the other of the first and second chambers contains a second composition;
• a dispensing system for simultaneously dispensing the first and second compositions from their respective first and second chambers, mixing the two compositions together, and dispensing a mixture of the two compositions from the container under pressure;
• and
• an aerosol propellant between the separator and the interior surface of the at least one of the first and second chambers for pressurizing the composition in the pouch for dispensing the contents thereof through the dispensing system under pressure.