How Long Does Pet Dander Stay In a House?

Exposing to pet dander can be a serious problem for an allergic person, especially if they have indoor pets. You might experience sneezing frenzy, chronic cough, breathing difficulty and other respiratory issues. To make matters worse, pet dander can be very sticky and will adhere to people’s hair, clothes, and other household items for long periods of time. If you are planning to move into a house that has indoor dogs or cats' history, here is what you need to do in dealing with dander.
Short answer
Pet dander will stay in a house for 4–6 months even if the pet is no longer around.


How Long Can Pet Dander Stay In a House?

Pet dander will typically stay in a house for 4–6 months or 20 to 30 weeks even after the pet is no longer present. This is according to different researches and allergists. Generally, cat dander is more adhesive than dog dander as it is easily airborne. You will regularly find pet dander stuck on hair, bag, clothes, sofa, carpet, bed, floors and even all
l. If the dander is stuck on a person, any movement or action will cause the allergen to spread to other locations. Because of this, pet dander can be found in malls, offices, schools, nursery rooms, or restaurants even though pets are not allowed in the premise. We highly recommend home buyers with hyperallergic to avoid purchasing a unit that has housed a pet for the past 6 months.

6 Common Pet Dander Allergy Symptoms

  • Constant sneezing, Nasal congestion
  • Postnasal drip cough, Wheezing
  • Swollen eyes, Red eyes
  • Rashness, Eczema
  • Difficulty breathing, Shortness of breath
  • Chest tightness

How Do I Remove Pet Dander From My Home?

There are plenty of ways you could get rid of pet dander in your home. Some are very straightforward while others require regular cleaning for it to work. Unfortunately, the best way to make your home complete dander-free is to part ways with your cat or dog. Cruel it may seem, but that’s the most dependable way to stop the source of the pet dander.

If that is not an option, here are ways you could do keep airborne pet dander at a minimum level.

  • Vacuum, mop, and wipe thoroughly – As pet dander is very sticky to smooth surfaces, you need to constantly vacuum and mop the floor on carpet and tiles. For dander that is adhered to the wall, shelf, or upholstery, use a wet rag and scrub out as much hair as you can. Keep in mind that if your pet is still inside, you will need to repeat the steps over and over again.
  • Get a HEPA air purifier – As pet dander is light, it can stays suspend in the air for a long time before settling on any surface. So a pet air purifier with HEPA filter will really come in handy. It will pull the airborne pet dander down and trap it into its filter. That way you will not likely breathe into the pet dander and there is less dander falling to the ground.
  • Refloor before moving in – Costly but a must for a home with pets record. Old carpet can be filled with pet dander hidden and is unremovable. The only way to remove the irritants is to refloor the entire carpet. If possible switch to tiles as it is non-porous so there is no way pet dander can sneak inside.
  • Get yourself checked – Ask your allergist to perform a test to determine what kinds of allergies you are going through. If you are particularly allergic to certain cat or dog dander, there are medications your allergist can prescribe. Medications will help alleviate your upper and lower respiratory symptoms.
  • Groom And Bathe Your Pet – For those that decided to go against the wishes of the doctor and keep their pet indoors. Grooming and bathing your pet will remove a good chunk of pet dander in the process. You should groom your cat or dog everyday especially if they are the types that shed a lot. Also, bathe them every 1-2 weeks depending on the breed size.
  • Dander Removal Spray – For those that needed a quick clean up before their guest arrives. Just a few quick sprays and settled dander will be killed off instantaneously. There are tons of dander removal spray you can purchase, look for those fragrance-free and without parabens, and phthalates.

An estimated 5-10 percent of Americans are allergic to pet dander. Pet dander is excessive skin flakes that shed from animals’ fur or feathers (bird species). Hidden inside shed hair, the tiny skin cells vary in size between 5 microns down to 2.5 microns or smaller. In a household, cat dander is the biggest culprit to allergies follow by dog dander.

When a person is having an allergic reaction, it is the proteins from the hair that is aggravating the allergy, not pet dander. Our immune system will mistake the protein as harmful allergens and start producing antibodies as part of the reactions. This will result in a person experiencing symptoms such as sneezing, skin rash, and headache.

Max Fernandez

A loving father and a dedicated reviewer for airfuji.com with more than 1000 air purifiers under his belt. Max Fernandez is also one of the million patients currently suffering from asthma. Feel free to nudge him if you have any questions.
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