Panasonic in China uses nanoe™ Technology to Keep Clothes Smelling Fresh

Panasonic washing machine featuring nanoe™ technology eliminates stubborn odors in clothing

Panasonic’s product planning team in China has leveraged the deodorizing power of proprietary nanoe™ technology in the development of a distinctive washing machine that eliminates odors in clothing caused by cooking oils and strong-smelling spices. Popular dishes cooked at the table, like “hot pot,” are not only a way of life in China, but notorious for creating odors that stubbornly cling to clothing.

A nanoe™ is a nano-sized ion particle coated with water particles. Finer than steam, it penetrates deeply into fabric. nanoe™ particles work directly on the causes of odors such as cigarette smoke*1, pet-related smells*2, and odors caused by dampness after washing*3, deodorizing to a level that’s virtually unnoticeable. A key breakthrough was achieved by the Panasonic engineers in China, who realized that the level of humidity in the washing machine was directly relevant to the elimination of odors.

The brand name nanoe™ represents the integration of nanotechnology and electricity. A fine ion particle encased in water, a nanoe™ is formed by applying high voltage to moisture in the air. It contains hydroxyl radicals (•OH), which inhibit the growth of mold*4 and pollen*5, fine atmospheric particulate matter known as PM2.5*6, bacteria*7 and viruses*8, as well as allergens*9. It has about 1,000 times the water content of a common air ion, and is gentle to skin and hair.*10

What is nanoe™?

Image: The origin of the nanoe(TM) name. Under the formula “nano-technology + electric = nanoe(TM)” is the expression: nanotechnology, 1 nm = one billionth of a meter.

Hydroxyl radicals (OH radicals) that produce the effects are encased in particles made of water.

Image: A diagram of electric particles created from water and containing hydroxyl radicals (OH radicals). The particle size is from 5 nanometers to 20 nanometers. (1 nm = one billionth of a meter)

OH radicals inhibit bacteria*7 and viruses*8.

Image: Diagram showing nanoe(TM) removal of bacteria. First, nanoe(TM) reaches bacteria. Next, OH radicals take hydrogen out of bacteria. Then they transform the hydrogen into water and inhibit bacteria. At the end of the image, the formula “OH + H = H2O” appears.

Deodorization by nanoe™

Image: “Deodorization by nanoe(TM).” First, nanoe(TM) accurately reaches odors that have penetrated fibers. Next, OH radicals decompose the substances that cause odors. Then, they deodorize.

Timeline of nanoe™ innovation

Thanks to the steadily increasing understanding of nanoe™ technology and the benefits to healthier living it brings, homes and public environments are becoming a line of defense against airborne pathogens and pollutants that exacerbate allergies and lead to illness. This extraordinary technology lets everyone take a deep breath and enjoy the moment, whether alone or with family and friends, in fresher-smelling environments with greatly reduced short- and long-term risks to health and well-being.

Over the last two decades the use of nanoe™ technology has grown to reach into many facets of daily life. In 2003, it was first applied in air purifiers produced in Japan. Today, nanoe™ technology can be found in air conditioners, refrigerators, washers, dryers, beauty appliances like hair dryers and more, available in an increasing number of markets. Products featuring nanoe™ technology are seeing widespread use in applications ranging from automobiles and railroad cars to public facilities such as hotels, hospitals, and schools.

In 2016, Panasonic debuted nanoe™ X, an upgraded version of nanoe™. It has ten times the amount of OH radicals contained in nanoe™*11, allowing it to, for example, remove the odor of cigarette smoke ten times faster than before*12. More recently, in 2018, Panasonic incorporated a nanoe™ X device into its ALPHA series drum-type washer/dryers launched in China. Coupled with a function that enhances the deodorizing effect by increasing humidity, it enables the reduction of smells such as those created by hot-pot cooking, cigarettes and pets, to a level that’s practically imperceptible.

Photo: ALPHA series washer/dryer incorporating a nanoe(TM) X device and installed in a home.
Photo: In their house, a couple who is delighted with the removal of odors from a coat.

Panasonic’s nanoe™ technology, which effectively deodorizes, purifies the air, disinfects, and supports the maintenance of beautiful skin, is steadily being rolled out globally. Panasonic endeavors to keep its finger on the pulse of the concerns of customers worldwide, and propose real-world solutions that will make daily living more healthy.

Image: A Better Life, A Better World

*1
nanoe™ X:
[Testing organization] Panasonic Product Analysis Center [Testing method] Verified using the six-level odor intensity scale method in an approximately 23m3 test room [Deodorization method] nanoe™ released [Test substance] Surface-attached cigarette smoke odor [Test result] Odor intensity reduced by 2.4 levels in 12 minutes (4AA33-160615-N04)
nanoe™:
[Testing organization] Panasonic Product Analysis Center [Testing method] Verified using the six-level odor intensity scale method in an approximately 23m3 test room [Deodorization method] nanoe™ released [Test substance] Surface-attached cigarette smoke odor [Test result] Odor intensity reduced by 1.2 levels in 2 hours (BAA33-130125-D01)
• Deodorization effects vary with the ambient environment (temperature and humidity), operation time, odor, type of fiber, etc.
• Harmful substances such as carbon monoxide that are contained in cigarette smoke are not removed.
• Not all the odor components such as building material odor, pet odor, etc. that are generated at all times can be removed.
*2
nanoe™ X:
[Testing organization] Panasonic Product Analysis Center [Testing method] Verified using the six-level odor intensity scale method in an approximately 23m3 test room [Deodorization method] nanoe™ released [Test substance] Surface-attached pet odor [Test result] Odor intensity reduced by 1.5 levels in 1 hour (4AA33-160315-A34)
nanoe™:
[Testing organization] Fragrance Design Major, Department of General Information, Faculty of Information, Daido University [Testing method] Verified by operating the equipment for about a week in an approximately 27.5m3 pet cage room (average 13 pets are in the room) of a pet shop and checking odor intensity [Deodorization and inhibition method] nanoe™ released from two equipment types [Test substance] Surface-attached pet odor [Test result] Inhibited by approximately 33.9%
*3
nanoe™ X and nanoe™:
[Testing organization] Panasonic Product Analysis Center [Testing method] Verified using the six-level odor intensity scale method in an approximately 23m3 test room [Deodorization method] nanoe™ released [Test substance] Surface-attached damp odor [Test result] Odor intensity reduced by 1.7 levels in 0.5 hours (Y16RA002)
*4
nanoe™ X and nanoe™:
[Testing organisation] Japan Food Research Laboratories [Testing method] Measured changes in the number of molds in an approximately 23m3 test room [Inhibition method] nanoe™ released [Test substance] Airborne molds [Test result] Inhibited by at least 99% in 60 minutes (205061541-001) Date of issuance of test report: July 6, 2005 
[Testing organisation] Japan Food Research Laboratories [Testing method] Checking growth of molds having adhered to a cloth in an approximately 23m3 test room [Inhibition method] nanoe™ released [Test substance] Adhered molds (black mold, Aspergillus oryzae, blue mold, sooty mold, Gibberella zeae, Aspergillus tonophilis, mucor, black fungi) [Test result] Inhibiting effect was confirmed in 8 hours (Black mold: 17145307001-0201. Aspergillus oryzae: 17145307001-0101. Blue mold: 17145307001-0601. Sooty mold: 13044083002-01. Gibberella zeae: 17145307001-0401. Aspergillus tonophilis: 17145307001-0301. Mucor: 17145307001-0501. Black fungi: 17145307001-0701.) Date of issuance of test report: June 14, 2013 for sooty mold and January 30, 2018 for others
*5
nanoe™ X:
<Cedar pollen> [Testing organization] Panasonic Product Analysis Center [Testing method] Measured allergens attached to a cloth, by using the ELISA method, in an approximately 23m3 test room [Inhibition method] nanoe™ released [Test substance] Cedar pollen [Test result] Inhibited by at least 97% in 8 hours and by at least 99% in 24 hours (4AA33-151001-F01) <Cedar, Cypress, Orchard grass, Ragweed, Miscanthus, White birch, Mugwort, Olive, Juniper, Casuarina, Alnus japanica, Timothy grass, Humulus japonicus pollens> [Testing organization] Panasonic Product Analysis Center [Testing method] Verified by using the electrophoresis method in an approximately 23m3 test room [Inhibition method] nanoe™ released [Test substance] Pollen (Cedar, Cypress, Orchard grass, Ragweed, Miscanthus, White birch, Mugwort, Olive, Juniper, Casuarina, Alnus japanica, Timothy grass, Humulus japonicus) [Test result] Inhibiting effect was confirmed in 24 hours (4AA33-151015-F01, 4AA33-151028-F01, 4AA33-160601-F01, 4AA33-160601-F02, 1V332-180301-F01)
nanoe™:
<Cedar pollen> [Testing organization] Panasonic Product Analysis Center [Testing method] Measured allergens attached to a cloth, by using the ELISA method, in an approximately 23m3 test room [Inhibition method] nanoe™ released [Test substance] Cedar pollen [Test result] Inhibited by at least 88% in 8 hours (BAA33-130402-F01) <Cypress, Orchard grass, Ragweed pollens> [Testing organisation] Panasonic Product Analysis Center [Testing method] Verified by using the electrophoresis method in an approximately 23m3 test room [Inhibition method] nanoe™ released [Test substance] Pollen (Cypress, Orchard grass, Ragweed) [Test result] Inhibiting effect was confirmed in 24 hours (1V332-171010-F04, 1V332-171010-F01, 1V332-171010-F02) <Cypress, Orchard grass, Ragweed pollens> [Testing organisation] Faculty of Textile Science and Technology, Shinshu University [Testing method] Verified by exposing directly in a 45L airtight container and using the electrophoresis method [Inhibition method] nanoe™ released [Test substance] Pollen (Cypress, Orchard grass, Ragweed) [Test result] Inhibiting effect was confirmed in 60 minutes
*6
nanoe™ X:
[Testing organization] Panasonic Product Analysis Center [Testing method] Measured the amount of attached organic substances in an approximately 23m3 test room [Inhibition method] nanoe™ released [Test result] <Aromatic carboxylic acid (benzoic acid)> Broken down at least 99% in approximately 8 hours (Y17NF096) <Paraffin (hexadecane)> Broken down at least 99% in approximately 16 hours (Y17NF089) 
nanoe™:
[Testing organization] Panasonic Product Analysis Center [Testing method] Measured the amount of attached organic substances in an approximately 23m3 test room [Inhibition method] nanoe™ released [Test result] <Aromatic carboxylic acid (benzoic acid)> Broken down at least 99% in approximately 16 hours (Y13NF135) <Paraffin (hexadecane)> Broken down at least 99% in approximately 24 hours (Y13NF136)
*7
nanoe™ X and nanoe™:
<Airborne bacteria> [Testing organisation] Kitasato Research Center for Environmental Science [Testing method] The number of airborne bacteria is measured after direct exposure in an approximately 23m3 test room [Inhibition method] nanoe™ released [Test substance] Airborne bacteria [Test result] Inhibited by at least 99% in 4 hours (24_0301_1 issued by Kitasato Research Center) (The test was conducted only with one type of bacteria.) <Adhered bacteria> [Testing organisation] Japan Food Research Laboratories [Testing method] Measured the number of bacteria adhered to a cloth in an approximately 23m3 test room [Inhibition method] nanoe™ released [Test substance] Adhered bacteria [Test result] Inhibited by at least 99% in 8 hours (13044083003-01) Date of issuance of test report: June 14, 2013 (The test was conducted only with one type of bacteria.)
*8
nanoe™ X and nanoe™:
<Airborne virus> [Testing organisation] Kitasato Research Center for Environmental Science [Testing method] The viral infectivity of airborne viruses is measured after direct exposure in an approximately 25m3 test room [Inhibition method] nanoe™ released [Test substance] Airborne virus [Test result] Inhibited by at least 99% in 6 hours (24_0300_1 issued by Kitasato Research Center) (The test was conducted only with one type of virus.) <Adhered virus> [Testing organisation] Japan Food Research Laboratories [Testing method] Measured the viral infectivity of viruses adhered to a cloth in an approximately 25m3 test room [Inhibition method] nanoe™ released [Test substance] Adhered virus [Test result] Inhibited by at least 99% in 8 hours (13001265005-01) Date of issuance of test report: February 11, 2013 (The test was conducted only with one type of virus.)
*9
nanoe™ X:
[Testing organisation] Panasonic Product Analysis Center [Testing method] Verified using the electrophoresis method in an approximately 23m3 test room [Inhibition method] nanoe™ released [Test substance] Allergens (Dermatophagoides pteronyssinus, Cedar, Cypress, Alder, White Birth, Orchard grass, Timothy grass, Ragweed, Mugwort, Alternaria, Aspergillus, Candida, Malassezia, Dog, Cat, Cockroach, Moth [Test result] Inhibiting effect was confirmed in 24 hours (4AA33-160615-F01, 4AA33-151015-F01, 4AA33-151028-F01, 4AA33-160701-F01, 4AA33-160601-F02, 4AA33-160615-F02, 4AA33-160620-F01, 4AA33-160615-F03) 
nanoe™:
<Dog-derived allergens and cat-derived allergens> [Testing organisation] Institute of Tokyo Environmental Allergens [Testing method] Direct exposure in a 45L airtight container and measured by using the ELISA method [Inhibition method] nanoe™ released [Test substance] dog derived allergens, cat derived allergens [Test result] <Dog (dander)> Inhibited by at least 99% in 1 hour (11M-RPTAPR047_1) <Cat (dander)> Inhibited by at least 98% in 2 hours (11M-RPTAPR051_1) <Mite feces/carcasses> [Testing organisation] Panasonic Product Analysis Center [Testing method] Measured allergens attached to a cloth, by using the ELISA method, in an approximately 23m3 test room [Inhibition method] nanoe™ released [Test substance] Attached mite allergens [Test result] Inhibited by at least 60% in 24 hours (BAA33-130304-F04) <Mold-derived allergens> [Testing organisation] Institute of Tokyo Environmental Allergens [Testing method] Direct exposure in a 45L airtight container and measured by using the ELISA method [Inhibition method] nanoe™ released [Test substance] Mold-derived allergens [Test result] Inhibited by at least 93% in 2 hours
*10
nanoe™ X:
[Testing organization] Panasonic Product Analysis Center [Testing method] 90-minute resting, 60-minute exposure to nanoe™, and 60-minute holding time. Eight females aged between 30 and 49 with normal to dry skin. [Test result] Change in skin moisture content being equivalent to the change in environmental humidity from 30% to 50% (20% improvement)
• Effectiveness for beautiful hair is obtained by using continuously for at least two weeks.
• Effects vary by individual and vary with season and ambient environment such as humidity. Effects vary with skin and hair's exposure to nanoe™.
*11
Comparison between nanoe™ that releases 480 billion radicals per second and nanoe™ X that releases 4.8 trillion radicals per second measured with the ESR method (investigated by Panasonic)
*12
Comparison between nanoe™ that reduces odor intensity by 1.2 levels in 2 hours and nanoe™ X that reduces odor intensity by 2.4 levels in 12 minutes (investigated by Panasonic)

The test results are not the experimental results obtained by actually using in a room. Actual effects vary with room conditions, use method, etc.
Although nanoe™ and nanoe™ X inhibit viruses, etc., they do not guarantee prevention of infection.

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