Thank you for your information. I bought a similar one and used it with soapy water as instructed.
water
【在 T*******e 的大作中提到】 : use flea comb and once you comb the flea off, put the comb in soapy water : coz fleas can't jump out of soapy water. : I have about 20 combs like this: : http://www.dog.com/item/safari-double-row-flea-comb/190341/