Dyson DC41 and DC39 vacuum cleaners with Asthma and Allergy Foundation of America logo

All Dyson uprights and canisters are certified Asthma and Allergy Friendly™ by the Asthma and Allergy Foundation of America.

Asthma and Allergy Foundation of America certified logo on a white background

What the certification means

To achieve the asthma and allergy friendly™ certification, Dyson vacuums undergo an independent program of rigorous tests. These tests cover the removal of allergen-containing test dust from carpets, levels of airborne allergens during vacuuming, filtration integrity, cleaning performance with when the bin is almost full, and the risk of allergen exposure during bin emptying. Dyson machines meet and exceed the strict criteria for all these tests.

Visit AAFA website
Pile of dust annotated with mites, pollen, mold spores and bacteria

One in five US homes are affected by asthma and allergies

Some allergens are just 0.5 microns in size – approximately 200 times smaller in diameter than a human hair. Many start life in the home, like dust mites and their faeces. Others, such as pollen, enter through open windows. When allergy sufferers inhale allergens or come into contact with them, their immune systems overreact, producing antibodies to repel them. Sneezing, coughing or a runny nose – an allergic reaction.

Annotated image of the Dyson DC50 vacuum cleaner

Engineered to remove allergens

For a vacuum cleaner to be effective for people with asthma and allergies, it needs more than just a HEPA filter. Just as important are constant powerful suction, high dust removal at the cleaner head, the ability to capture particles down to 0.5 microns and hygienic bin emptying.

X-ray image of a Dyson Radial cyclones

Expelled air that’s cleaner than the air you breathe

Dyson vacuums are engineered to be airtight, ensuring that the air that leaves them is cleaner than the air you breathe.

Cyclone Technology

Patented cyclone technology

There are other bagless vacuums that use cyclones. But inefficient cyclones allow dust to pass right through, onto the filter, clogging it and causing a loss of suction during use.

Dyson cyclones are more efficient than any other. They generate centrifugal forces of up to 313,000G, hurling dust and dirt from the airflow straight into the clear bin.

Graphic of a HEPA filter found in Dyson vacuums

HEPA filter

The HEPA filter in a Dyson vacuum is an extra safeguard for allergy sufferers. It traps microscopic particles that are 1/3000 the size of a pinhead.

Cross section of a Dyson Carbon Fibre cleaner head

Effective floor tools

Most vacuums have brush bars that only contain nylon bristles. While these work well on carpets, they’re less effective on hard floors, where fine dust can be left behind.

The latest Dyson brush bars are different. They have a row of anti-static carbon fiber filaments, as well as nylon bristles. The filaments prevent the build up of the static charge that holds fine dust to the floor, allowing the dust to be sucked up into the vacuum.

Pipettes over a sample tray used in the Dyson microbiology lab

Dyson microbiology lab

At the Dyson Research and Development center in Malmesbury, UK, 450 engineers and scientists look for new ways to solve everyday problems. A dedicated microbiology lab plays a vital role.

Here, Dyson microbiologists cultivate and study household allergens. They have a dust mite farm, where they breed house dust mites. They use the allergenic dust mite feces for cyclone and performance testing.

The experiments they carry out help Dyson develop vacuum cleaners that meet Asthma & Allergy Friendly™ certification standards according to the Asthma and Allergy Foundation of America.