I was at the rental counter of Samy's Camera and the guy who repairs/cleans cameras warned me against using a blower on my sensor.
Dust is in the air, and the blower will blow the air/dust mixture into the camera. Could add more dust on the sensor.
I used a blower on my 80D and it made matters worse. My sensor has more dust after the blowing.
But...LensRentals uses the blower, and so do many here. So there is benefit to using a blower. Perhaps the room I was in had a higher
concentration of airborne dust.
I often thought of running an air purifier in a small room at home. Let it run for a couple of hours, then do the sensor blowing/cleaning.
Don't know if it would help - just an idea.
Sensor dust is less of a problem than it used to be. I have a 1D4/Sigma 150-600C mated together. They rarely detach.
My 80D/300 f2.8 stay together most of the time, unless to add/remove an extender. At air shows (lots of dust there) I swap in/out
extenders while inside a port-a-potty. It gives added protection from dust, and I can take care of business at the same time.