and degasser to each other still other embodiments use one or more gears 207 wherein the gear s couple to each other and or to splines in the drive shaft s many other configurations that maintain the air motor and degasser assembly spaced away from each other will become apparent to those of ordinary skill in the art and all such configurations are within the scope of the present disclosure referring again to fig2 the air motor and degasser shown further enable workers to inspect the air motor shaft for leaks without the need to separate the air motor from the degasser reducing the overall labor associated with such inspections in at least some illustrative embodiments standoffs not shown between air motor 202 and upper degasser chamber 214 provide the mounting points for air motor 202 thus allowing removal of guard 204 as needed to inspect air motor 202 for leaks this permits the air motor to be inspected without taking the unit out of service fig4 shows an illustrative method 400 for degassing borehole fluid using the above described degassers the method starts by passing borehole fluid through a degasser block 402 e g by pumping drilling fluid down a drillstring back up between the drillstring.