The superfluid 3He phases provide us with systems which share many of the properties of the physical vacuum in particle physics including bosons, fermions, gauge fields, gravity, chiral anomaly, zero-charge effect, etc. The superfluid phases which may exist in thin 3He films have additional properties of a two-dimensional origin, such as the fractionally quantized Hall conductivity. This quantum Hall effect (QHE) is representative of a whole class of phenomena caused by the quantization of physical parameters. They include fractional charge and spin of the particle-like solitons in superfluid 3He films on QHE for spin current. All quantized physical parameters (charge, spin, Hall conductivity) have step-like dependence on the film thickness. Also the quantum statistics of solitons changes with film thickness, alternating between Fermi-, Bose- and possibly parastatistics.