Device for treating and purifying a liquid product

A device for the treatment and purification of a liquid product, comprising:

• a cartridge, comprising a body having an internal surface, said body having a bottom end connectable with a top edge of a neck of an elastic bottle and a top end defining an outgoing orifice;
• a multi-layered filter fixed to said internal surface of said body, said multi-layered filter comprising a plurality of layers of filtering material superimposed one above the other, whereby said filter defines the sole passageway for the discharge of the liquid product from the bottle;
• a separate inner air feeder, comprising an open top end, a bottom end disposed adjacent to the top edge of the neck of the bottle and defines a passageway therebetween to intake air solely therethrough;
• and
• an encapsulating element located adjacent to the top edge of the neck of the bottle, said encapsulating element defining an orifice adjacent to said multi-layered filter to permit the liquid product to flow out of the elastic bottle solely through said multi-layered filter and out of said outgoing orifice, said encapsulating element having a release valve incorporated therein which is disposed adjacent to said bottom end of said air feeder, wherein said release valve is moveable from a closed position to prevent the liquid product from entering said air feeder and an open position to allow air to enter the bottle solely through said air feeder.