A device for packaging and dispensing a product in an airless manner, in particular in several phases, said device comprising: - a container, in particular tubular, defining an inner volume intended to contain the product, having two ends (31, 32) and a side wall extending between the ends (31, 32) along a longitudinal axis (X-X'), the inner volume being closed off by a movable bottom and opening out through a dispensing neck, the side wall delimiting an inner surface of the inner volume; - a dispensing member comprising a dispensing pump fastened on the dispensing neck, said dispensing pump including a suction conduit for the product; - a purge ring comprising a base delimiting a central passage orifice for the product, the central orifice comprising a first end in which the suction conduit of the pump opens out and a second end opposite the first end, the central orifice defining a central axis (A-A') of the ring extending between the first end and the second end; the base having an outer contour and a side surface extending between the outer contour and the central orifice, the side surface converging from the outer contour toward the second end of the central orifice; the outer contour of the ring coming into tight contact with the inner surface of the container; and - a dead space formed between the purge ring (24; 124; 224) and the dispensing member; - the purge ring comprising at least one radial opening arranged radially relative to the central axis (A-A'), the at least one radial opening emerging in the central orifice and allowing the passage of the product from the container toward the central orifice, the device being characterized in that the at least one radial opening is formed by a deflector forming a deflection cap mounted on the second end of the central orifice, extending across from the side surface of the base and covering at least part of the side surface of the base, the side surface and the cap forming at least one flow channel for the product between them connecting the at least one radial opening to the central orifice. - a container, in particular tubular, defining an inner volume intended to contain the product, having two ends (31, 32) and a side wall extending between the ends (31, 32) along a longitudinal axis (X-X'), the inner volume being closed off by a movable bottom and opening out through a dispensing neck, the side wall delimiting an inner surface of the inner volume; - a dispensing member comprising a dispensing pump fastened on the dispensing neck, said dispensing pump including a suction conduit for the product; - a purge ring comprising a base delimiting a central passage orifice for the product, the central orifice comprising a first end in which the suction conduit of the pump opens out and a second end opposite the first end, the central orifice defining a central axis (A-A') of the ring extending between the first end and the second end; the base having an outer contour and a side surface extending between the outer contour and the central orifice, the side surface converging from the outer contour toward the second end of the central orifice; the outer contour of the ring coming into tight contact with the inner surface of the container; and - a dead space formed between the purge ring (24; 124; 224) and the dispensing member; - the purge ring comprising at least one radial opening arranged radially relative to the central axis (A-A'), the at least one radial opening emerging in the central orifice and allowing the passage of the product from the container toward the central orifice, the device being characterized in that the at least one radial opening is formed by a deflector forming a deflection cap mounted on the second end of the central orifice, extending across from the side surface of the base and covering at least part of the side surface of the base, the side surface and the cap forming at least one flow channel for the product between them connecting the at least one radial opening to the central orifice.