4 months: The available information is for cat dander, but dog is probably similar. Typically about 4 months is needed to decrease levels to below 8 microgram/gram carpet dust. It is possible for levels to persist longer.
Answered 9/24/2016
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Hours: That's why if you are allergic to cats or dogs you should keep them out of the bedroom 100% of the time. If that is impossible, a hepa air filter may help. Also check out other tips at www acaai.Org.
Answered 3/18/2014
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