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  • These Dyson Air Purifiers Can Help Destroy Potentially Dangerous Indoor Pollutants

    They are designed not just to capture dust and allergens, but also to help destroy harmful chemicals like formaldehyde.
These Dyson Air Purifiers Can Help Destroy Potentially Dangerous Indoor Pollutants
  • Dyson unveils its latest generation of purification machines with the new Selective Catalytic Oxidization (SCO) filter engineered to continuously help destroy formaldehyde1.

    Formaldehyde is a colorless gas pollutant that is released by furniture and wooden products containing formaldehyde-based resins like plywood and fiberboard, insulating materials, and do-it-yourself products such as paint, wallpapers, varnishes, and household cleaning products2.

    Being 500-times smaller than particles the size of 0.1 microns, it is particularly difficult to capture and if left undetected, can lead to prolonged exposure due to continuous release of airborne chemicals, known as off-gassing.

    The Dyson Purifier Cool™ Formaldehyde TP09 has a catalytic filter with billions of atom-sized tunnels that break formaldehyde down into tiny amounts of water and CO2. It then regenerates from oxygen in the air to keep destroying it continuously without ever requiring replacement.

    According to an Australian news report, homeowners should be more aware of this toxin because it can “cause and exacerbate asthma-like respiratory problems and skin irritation such as dermatitis and itching.”

    The report adds that “high-level exposure can have ‘major toxic effects,’ causing ‘coughing, wheezing, chest pains and bronchitis.’” It even notes that experts have classified formaldehyde as a carcinogen.

    The Dyson Purifier Cool™ Formaldehyde TP09 has a built-in solid-state formaldehyde sensor to detect the gas. While other gel-based formaldehyde sensors can deteriorate over time and are easily confused with other VOC (volatile organic compound) pollution, Dyson’s sensor works alongside Dyson’s unique algorithm to precisely monitor formaldehyde levels, intelligently ignoring other gases that are detected by a dedicated VOC sensor.

    Tireless and ever-dissatisfied, Dyson engineers have also re-engineered the machine airflow pathways to achieve a fully sealed HEPA 13 standard3 filtration. This not only helps ensure that no air bypasses the filter but it also blocks any potential leak points through which dirty air might enter the airflow.

    This means Dyson’s latest purifiers help remove up to 99.95% of particles as small as 0.1 microns4. Improvements in the airflow journey have made the Dyson Pure Cool™ Formaldehyde up to 20% quieter5, reducing unwanted noise at home without any compromise on purification performance.

    Alex Knox, vice president of environmental care at Dyson said:

    “The off-gassing tendency of formaldehyde means that it can go undetected in a home for years. Dyson has engineered a machine that helps provide accurate and successful sensing, capture, and destruction of the pollutant. Our solid-state sensor doesn’t dry out over time, lasting the lifetime of the machine. The COVID-19 pandemic has raised global awareness about the air that we breathe, and Dyson’s commitment to providing cleaner air through innovation and technology remains at the forefront of our mission.”

    The indoor generation

    Every day, humans breathe up to 9,000 liters of air6, and, even before the COVID-19 pandemic, spent as much as 90% of their time indoors7. As homes increasingly become spaces where people work and exercise as well as sleep and play, the quality of the air everyone breathes in all aspects of their routine is non-negotiable.

    There are a number of indoor pollution sources, which release pollutants like PM10, PM2.5, VOCs, NO2, and formaldehyde into the air. Sources of pollution are present in all aspects of your daily lives, whether that be PM2.5 emitted when cooking, VOCs released from cleaning products, or the continuous off-gassing of formaldehyde from your living room furniture.

    Tirelessly improving and constantly iterating, Dyson’s new Purifier Formaldehyde range reflects the latest technology in three core areas: sensing, filtration, and acoustics.

    Precise formaldehyde sensing and destruction

    In addition to the existing particle, NO2, VOCs, temperature, and humidity sensors, the integration of an intelligent formaldehyde sensor helps ensure precise sensing of the pollutant for the lifetime of the machine.

    Formaldehyde sensors can be gel-based and may deteriorate gradually as they dry out over time. Using an electrochemical cell, the Dyson formaldehyde sensor does not dry out. Its unique intelligent algorithm cross-checks data every second, selectively sensing it to avoid confusion with other VOCs.

    Full-machine HEPA filtration8

    In Dyson’s new purifiers, it’s not just the filter that meets HEPA H13 standard, but the whole machine. It captures up to 99.95% of particles as small as 0.1 microns9 such as allergens, bacteria, H1N1 virus*, pollen, and mold spores10.

    Dyson engineers took a forensic approach to achieve a fully sealed machine, creating high-pressure seals at an additional 24 critical points to help prevent dirty air from bypassing the filters and carrying pollutants back into the room.

    Acoustically engineered to be up to 20% quieter11

    Dyson engineers increased efforts to further reduce the sound output of the Dyson Purifier Cool while maintaining purification performance. Through an iterative design, test, and build process managed at the Dyson Malaysia Development Center’s in-house acoustics chamber, the machine was re-engineered to be up to 20% quieter12.

    To achieve this noise reduction, Dyson engineers refined the overall airflow path by widening the aperture (slot in which the air exits the machine) and its geometry was improved. This reduced the amount of friction between the air and the surface of the machine, resulting in less sound. The noise was reduced from 64 to 61 decibels at max fan speed.

    Air multiplier technology

    Using Dyson Air Multiplier™ Technology, the machine can project purified air to every corner of the room13. The auto mode enables the machine to maintain a preferred room temperate14 and air quality levels, while the machine can be entirely controlled by the Dyson Link app and activated by voice control15.

    Engineered for real homes

    Dyson purifier machines are engineered for real spaces. The industry standard for testing air purifiers measures performance using a laboratory test conducted in a compact chamber 12m² in size, with a ceiling fan to circulate the air and one sensor inside the room measuring air quality.

    For more representative testing, Dyson’s POLAR test is based on a larger room size of 27m² with no added fan and uses eight sensors in the corners of the room and one sensor in the center to collect air quality data.

    Here’s a breakdown of the other features of Dyson air purifiers:

    • Guarantee: Dyson purifier machines have a two-year parts and labor guarantee.
    • Remote control: A magnetized remote control can be neatly stored on top of the machine.
    • Sleep time: Pre-set intervals ranging from 15 minutes to 9 hours
    • Dyson Link app: Available for iOS and Android, the Dyson Link app enables you to track indoor pollution, temperature, and humidity levels. It also provides maintenance support and troubleshooting.
    • Voice control: Compatible with Google Home, Alexa, and Siri
    • Night-time mode: Monitors and purifies using its quiet settings, with a dimmed display

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    1. Third-party full-machine testing based on GB/T 18801-2018 formaldehyde cumulative clean mass testing with continuous injection until the plateau of formaldehyde CADR is achieved. Results may vary in practice.

    2. "WHO guidelines on indoor air quality: selected pollutants," World Health Organisation, 2010.

    3. 1 Particle challenge by DEHS oil specified in EN1822 within a chamber specified in ASTM F3150. Tested in Max Mode at IBR US, for whole machine efficiency above 99.95%.

    4. Tested for filtration efficiency at 0.1 microns (EN1822, ISO29463).

    5. 20% quieter than Dyson’s predecessor machine, applies to Dyson Pure Cool and Dyson Pure Cool Formaldehyde only.

    6. "How your lungs get the job done," American Lung Association, 2017.

    7. "Combined or multiple exposure to health stressors in indoor built environments," World Health Organization Regional Office for Europe, edited by Dimosthenis A
    Sarigiannis, pg 9, 2013.

    *Whole machine tested by independent third-party laboratory Airmid (Ireland) for the capture of Influenza A (H1N1)

    8. 1 Particle challenge by DEHS oil specified in EN1822 within a chamber specified in ASTM F3150. Tested in Max Mode at IBR US, for whole machine efficiency above 99.95%.

    9. Tested for filtration efficiency at 0.1 microns (EN1822, ISO29463).

    10. Markets to ensure they use appropriate caveats for their location

    11. 20% quieter than Dyson’s predecessor machine, applies to Dyson Pure Cool and Dyson Pure Cool Formaldehyde only.

    12. 20% quieter than Dyson’s predecessor machine, applies to Dyson Pure Cool and Dyson Pure Cool Formaldehyde only.

    13. In maximum setting. Tested for air projection (DTM 801) and purification coverage in an 81m3 room (TM-003711).

    14. Applies to heating function only.

    15. Requires the device to run the app, Wi-Fi or mobile data, Bluetooth 4.0 support, and iOS version 10 or Android version 5 (or above). Standard data and messaging rates may apply. Voice control requires a compatible device.

This article is sponsored by Dyson.
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