I have read they do not work. What seems to work is a diluted rubbing alcohol spray. Also putting beds in cans of oil as suggested. Also steamers with high heat steam can kill them but that is labor intensive. ALso bagging up luggage or clothing in black bags and putting in sun. Also high heat from washing and drying. They don't do well with heat. They cause severe anxiety in people, above and beyond the physical damage they do..they are not believed to carry diseases although I am skeptical about that. People can get suicidal...just the thought of handling every item in your house? The expense? And think if you are a clutterer...the job would be endless.

Seal up beds now..mattresses and springs and take other precautions..extra clothes and bedding..i8deally to Goodwill but in vacuum bags or plastic locked bags...mg