i think that product is close to worthless. it may remove a tiny amount of water but so can tilting your head. it does not have the suction to remove most wax impactions i can assure you. i have seen the device and i am not the least impressed. it is safe since the suction is so weak it will not vacuum out anything. buy one (money back guarantee) and try it. something tells me that you will send it back for a refund.
there is a product on the market to vacuum your ears to remove moisture debris and wax. is it safe to use?