The right kind of mask... There are masks that are made for asbestos, I know when we went to the big box store, the white masks that one wears when taking out that messy fiberglass insulation are not adequate. It says so right on the box. Make sure to ask if you are uncertain. We also got one of those Ty-vek paint suites to wear, about 7.00 and it says good for asbestos. There are many threads on here also about the removal of asbestos tiles.
Does this mean you are going to take up the floor yourself? We used a shovel to scoop out the insulation under the floor, boy was it messy. Many years of compression, critters and travel made it pretty funky.
Tina and Mike
1959 Avion e-20