inlet port 18 not shown one way gas liquid flow valves practicable in the present invention are known in the art and selectable by the ordinary skilled artisan for use in the present invention examples of such one way valves include biased and or unbiased piston type 30 a and ball stop 30 b valves as exemplified in fig5 b and 5c a micro filter 28 useful for blocking bacteria and or untrapped moisture from passing into the vacuum pump member or from being vented to atmosphere is located in the gas liquid flow path of the device 10 after the interior chamber 16 of the desiccator cartridge the micro filter 28 may be located proximate the outlet port 20 to protect the pump member 22 and or proximate the exhaust port 26 to prevent venting bacteria or moisture to atmosphere the micro filter may be an in line micro filter 28 a separate from the desiccator cartridge as shown in fig2 b or an integral micro filter 28 b incorporated into the cartridge 14 proximate the outlet port 20 as shown in fig3 as shown in fig1 an electric motive means 36 is coupled to the vacuum pump member 22 of the vacuum desiccator 10 in the preferred embodiment the motive means 36 is an electric motor electric motors practicable in the present invention are known to and selectable by one of ordinary skill in the art in view of the teachings and figures contained herein for example a miniature oil less diaphragm pump is.