Atomizer for atomizing liquids, with - a liquid storage receptacle, - an atomizing device with an atomizing chamber, which on the one hand is connected to an ambient atmosphere via a multiplicity of outlet openings, and on the other hand with a vibrator, by means of which a wall arranged on the side of the atomizing chamber directed away from the outlet openings can be caused to vibrate, and in this way liquid in the atomizing chamber is caused to vibrate for the purpose of atomization, wherein a discharged volumetric flow rate is delivered from the atomizing device through the outlet openings, - an intake channel (70, 72, 66, 68), via which the liquid storage receptacle is connected to the atomizing device, - a pump device, which is provided in the intake channel (70, 72, 66, 68) for the purpose of conveying the liquid from the liquid storage receptacle to the atomizing chamber, - an electronic control device for controlling the pump device and the vibrator, and - a return channel (80, 82), which is separate from the intake channel (70, 72, 66, 68) and serves to drain liquid from the atomizing chamber into the liquid storage receptacle, - a bubble separator is provided in the intake channel (70, 72, 66, 68), characterized in that the atomizer is designed in particular for atomizing operations with variable orientation of the atomizer, wherein - the liquid storage receptacle is designed as a dimensionally flexible liquid-containing pouch, - the pump device can be controlled by the control device for the purpose of continuously conveying the liquid from the liquid storage receptacle to the atomizing chamber, and - the atomizing device and the pump device are designed in such a way and/or can be controlled by the control device in such a way that, during the atomization, the pumped volumetric flow rate of the liquid conveyed continuously by the pump device into the atomizing chamber is greater than the discharged volumetric flow rate delivered from the atomizing device through the outlet openings, wherein excess liquid is conveyed from the atomizing chamber through the return channel (80, 82) to the liquid storage receptacle. - a liquid storage receptacle, - an atomizing device with an atomizing chamber, which on the one hand is connected to an ambient atmosphere via a multiplicity of outlet openings, and on the other hand with a vibrator, by means of which a wall arranged on the side of the atomizing chamber directed away from the outlet openings can be caused to vibrate, and in this way liquid in the atomizing chamber is caused to vibrate for the purpose of atomization, wherein a discharged volumetric flow rate is delivered from the atomizing device through the outlet openings, - an intake channel (70, 72, 66, 68), via which the liquid storage receptacle is connected to the atomizing device, - a pump device, which is provided in the intake channel (70, 72, 66, 68) for the purpose of conveying the liquid from the liquid storage receptacle to the atomizing chamber, - an electronic control device for controlling the pump device and the vibrator, and - a return channel (80, 82), which is separate from the intake channel (70, 72, 66, 68) and serves to drain liquid from the atomizing chamber into the liquid storage receptacle, - a bubble separator is provided in the intake channel (70, 72, 66, 68), - the liquid storage receptacle is designed as a dimensionally flexible liquid-containing pouch, - the pump device can be controlled by the control device for the purpose of continuously conveying the liquid from the liquid storage receptacle to the atomizing chamber, and - the atomizing device and the pump device are designed in such a way and/or can be controlled by the control device in such a way that, during the atomization, the pumped volumetric flow rate of the liquid conveyed continuously by the pump device into the atomizing chamber is greater than the discharged volumetric flow rate delivered from the atomizing device through the outlet openings, wherein excess liquid is conveyed from the atomizing chamber through the return channel (80, 82) to the liquid storage receptacle.