Do air purifiers help with pet allergies? - air purifiers, health

How can air purifiers help you fight your allergy to pets?

air purifier for pet allergy

Which are the most popular pets?

According to the 2020-2021 National Pet Owners Survey conducted by the American Pet Products Association (APPA), 69% percent of all U.S. households or about 90 million families own a pet of some kind. This is up from 56% of U.S. households in 1988, the first year the survey was conducted. Dogs are considered the most popular pet among US citizens. 65.1 million households own a dog, while around 42.9 million have a cat.

How does an animal hair allergy develop?

Despite the great popularity of pets, they can pose a health risk for some people because our fluffy friends lose several hundred hairs every day alongside dander. These can sometimes trigger physical symptoms in people with pet hair allergies. In the case of an animal hair allergy, it is usually a reaction of the immediate type. The immune system is first sensitized to the allergen and if the allergen enters the body again, an immune reaction is triggered. In allergy sufferers, this usually manifests itself in the form of sneezing, a runny nose, and a feeling of tightness in the chest. Other symptoms can include itching, watery eyes, and eczema. Breathing in animal allergens can thus aggravate respiratory symptoms and even limit lung function.

The pet hair itself does not usually cause an allergic reaction, instead, it is their dander. More specifically, it is the proteins secreted by the oil glands under the pet’s skin that cover the pet’s dander. Sometimes you may notice these dander floating through the air or accumulating in certain corners of your home. However, not all dander is visible to the human eye. Some dander is microscopic and can get caught in carpets, bedding, and furniture. When they are stirred up, the allergens are released and can remain for a long time.

What is the difference between cat and dog allergens?

In total, there are 19 identified cat allergens. However, a single protein is responsible for most of the allergic reactions (Fel d 1), which is found in the animal’s sebaceous glands and skin. Cat allergens are particularly light because they can float in the air for hours and settle on furniture and clothing. Even months after a cat has been in a room, people with cat allergies can experience allergic symptoms.

Compared to cats, dogs have a lower allergy potential because the allergens in this case are less aggressive. In addition, dog allergens are heavier than those of cats and therefore cannot combine as easily with dust particles and float through the air. Some dog breeds spread significantly fewer allergens than others, such as a poodles.

poodle pet allergy safe


What makes animal dander harmful to our health?

Dander is the main cause of animal allergies. They are particularly small, measuring only 5 to 10 microns. The smaller and lighter particles are, the better other particles such as dust can attach to them, thus allowing them to remain in the air for a particularly long time. The allergy-causing proteins of dogs, cats, and other animals found in the dander are normally called inhalant allergens. Humans absorb this type of allergen as small airborne particles through breathing.

How do pollen, dirt & co. get into the apartment?

In addition to pet hair and dandruff, our beloved four-legged friends also like to bring home all kinds of other dirt particles from their walks (if you have a dog or a cat you surely know what I’m referring to). Pollen has a particularly easy time of entering the home here, as it attaches itself unnoticed to the animal’s fur. This creates an additional burden on the air quality and can also cause allergic reactions. Take a look at last week’s blogpost, where we explain in detail why air purifiers are a safe bet against allergies.

How can KORU help?

By filtering out fine particles, air purifiers help clean indoor air, thus reducing the potential negative effects of air pollution such as allergic reactions, and both chronic and acute respiratory diseases including asthma. The ideal air purifier for pet owners is able to rid the air of allergy-causing proteins carried by pet hair or contained in pet dander. Therefore, before buying an air purifier for home or offices, it is essential to check what particle size it can capture. Ideally, a device that can filter even the smallest pollutants should be chosen. The microscopic allergy-causing particles contained in animal hair or dander aren’t usually captured with conventional HEPA filters and remain in the air. Air purifiers with PCO filters and UV sterilization such as KORU offer an optimal solution to this as they are able to remove even the smallest particles, and do so entirely without producing harmful chemicals.

koru washable ceramic filter lasts forever


In a household with four-legged friends, pet hair can accumulate in a very short time. Traditional air purifiers often need a new filter after just 2-3 months for this very reason. KORU’s ceramic filter, can easily be rinsed out and lasts a lifetime. This not only saves high costs in filter replacements, but also ensures less environmentally harmful waste.


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