I just installed an air cleaner in my shop. I bought a Grizzly model G5955. My problem is it is on the ceiling of my shop right under the living room. You can hear the unit running(a humming sound) when you are in the living room. The unit is quiet in the shop except for the air moving out of the cleaner. Is there any way to rubber mount my air cleaner to keep the humming out of the upstairs?