3 doctors weighed in:
How long does pet dander remain in the house?
3 doctors weighed in

Dr. Sean McGhee
Internal Medicine - Allergy & Immunology
1 doctor agrees
In brief: 4 months
About four months for most cat allergen, and dog is probably similar, although there isn't much evidence about dog.
Levels can persist much longer, especially if the levels are extremely high originally.

In brief: 4 months
About four months for most cat allergen, and dog is probably similar, although there isn't much evidence about dog.
Levels can persist much longer, especially if the levels are extremely high originally.
Dr. Sean McGhee
Dr. Sean McGhee
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Dr. Jack Mutnick
Internal Medicine - Allergy & Immunology
In brief: Varies
Cat dander tends to be more buoyant and can actually find itself in the recessed corners of the ceiling.
Dog dander is easier to clean overall. Effective vacuuming and throwing away pet beds can help although dander can hang around on clothing for quite some time.

In brief: Varies
Cat dander tends to be more buoyant and can actually find itself in the recessed corners of the ceiling.
Dog dander is easier to clean overall. Effective vacuuming and throwing away pet beds can help although dander can hang around on clothing for quite some time.
Dr. Jack Mutnick
Dr. Jack Mutnick
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