There is apparently a internet letter being circulated saying that the
swiffer wet jet cleaning system uses something similar to atifreeze in
the cleaner and that it can kill dogs and cats.  I did some research
after someone passed the letter on to me and it seems to be a hoax and
the products are safe to use.  I did check my own bottles of cleaner and
no where did it have the supposed warning about the solution being toxic
to kids and pets that is mentioned in the circulating letter.  Also, the
letter mentions the dog died of liver failure when antifreeze causes
kidney failure.

For more information go to:
http://www.snopes.com/critters/crusader/swiffer.asp

The Swiffer people say this:
There is a false Internet rumor circulating rapidly among pet owners
alleging that Swiffer® WetJet® may contain antifreeze and is harmful to
pets.  The Swiffer Wet® cloths and WetJet® liquid solution cleaners do
not contain antifreeze or any ingredient similar to it. In fact, all
Swiffer products are safe to use around pets.

We evaluated the Swiffer Wet cloths and WetJet cleaners to ensure
they're safe—a fact confirmed by the ASPCA, independent veterinarians
and scientists. In fact, for nearly five years, people in over 38
million U.S. homes have safely used Swiffer products on everything from
the kitchen and living room floors to tables and ceiling fans.

We have pets too, and their health and well-being is very important to
us. Please help us stop this rumor by sharing the truth with others. If
you have any questions, please feel free to contact us.

xxxx

I thought I'd pass this on before anyone here became concerned about
their animals.  Of course we all need to use common sense when we're
dealing with household cleaners and our kids and pets but the residue
from Swiffer Wet Jets will not kill your furbaby like this letter portrays.

Margaret