Just check the label of any grocery store laundry detergent that contains the words Clear or Free.  Cheer Free & Gentle is one brand that comes to mind.  Arm & Hammer makes one, too.  

If you start using scent-free detergent and that doesn't work, you might want to consider the possibility that one or more of the cats has spread a respiratory infection among the rest of them.  

 "k k" <fake@nospam.hbci.com> wrote in message news:fake-AB9835.10173029122004@news.isp.giganews.com...
 In recent months we have had a high incidence of respiratory problems
 with cats in our shelter - some that have had severe sudden-onset
 asthma-like symptoms. After one kitten's symptoms cleared up almost
 immediately after a change of bedding, we are thinking that laundry
 detergent might have something to do with this.
 When we noticed this I remembered that my asthma symptoms had flared up
 one day while I was folding laundry- I usually do not have that close
 contact with the bedding materials.
 I don't know what the cat care workers are using - no fabric softener is
 used. It would appreciate any suggestions for a brand of detergent that
 you would consider cat-safe

k k wrote:

Arm & Hammer for Sensitive skin has no additives or perfume.
Safe for puppies, kittens and people.
If they're using any sort of powder detergent? -? that might be the problem.

Of course, chlorine is a famous lung/respiratory irritant as well.
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