Do anyone really have a consistent problem with this??
Unlike some people who only change their lenses in a sterile environment in a sealed room and always have a clean table close at hand I sometimes change lenses outside when the wind is blowing up a dust storm or it is raining. The only place to lay a lens down is on a tree stump or in the mud.
So occasionally I do get a dust particle or two on the sensor.
You should carry around a portable HEPA laminar flow hood. Neuro has a sideline selling them.
5D IV, 5DS R, 7D II, EOS-M, Powershot G3 X, 400mm DO II, 300/2.8 II, 1.4xTC III, 2xTC III, EF 1.8 STM, EF 70-200/4 IS, EF 24-105, 15-85, 100-400 II, Sigma 10-20, Sigma 150-600mm C, EOS-M5 15-45, f/2 22, 11-22, Samyang 8mm f/2.8 fisheye