Introduction of TOTO Washlet

2018.10.19 Hideki TAKADA

TOTO Washlet Production Division Chief delegate of JP NC for IEC/SC59L/PT62947

■ Corporate name ＴＯＴＯ LTD. ■ Establishment May 15, 1917 ■ Business base Kitakyushu city, Fukuoka Pref. ■ Consolidated net sales 7.172 billion AUD 573.819 billion JPY ■ Consolidated operating profit 6.07 million AUD 48.571 billion JPY ■ 6.17 million AUD Consolidated ordinary income 49.381 billion JPY ■ 4.23 million AUD Consolidated net income 33.839 billion JPY ■ 4.45 million AUD Capital 35.579 billion JPY ■ Number of employee Consolidated 30,334 TOTO LTD. 7,539

As of March 2017 1AUD=80JPY Number of employee as of December 2016

■Overseas bases China As of June 2016 東陶（中国）有限公司）： (Sales / general HQ Affiliates 北京東陶有限公司（Production) ：Sales office 東陶機器（北京）有限公司（Production) Brazil ：Related companies 東陶（大連）有限公司（Production) 南京東陶有限公司（Production) TOTO Do Brasil Distribuição e 東陶（上海）有限公司（Production) Comércio, Ltda. （Sales) 東陶華東有限公司（Production) USA Germany 東陶機器（広州）有限公司（ Production) TOTO Americas Holdings, Inc. TOTO Europe GmbH 東陶（福建）有限公司（ Production) (Holding company）（Sales/ general HQ）日泰（寧波）有限公司（） Related company TOTO U.S.A., INC. （Production /sales) TOTO Germany GmbH 東陶（香港）有限公司 (Sales）（Production）厦門和利多衛浴科技有限公司（Related company） Mexico UK ICOT香港有限公司(Related company) TOTO MEXICO, S.A.DE C.V. TOTO Europe (Production) London Sales Office France TOTO Europe France Sales Office India Korea TOTO INDIA INDUSTRIES TOTO KOREA LTD. (Sales） PRIVATE LIMITED (Sales) Taiwan UAE 台湾東陶股份有限公司（Production Sales) TOTO ASIA OCEANIA Dubai Sales Office Philippines Thailand TOTO ASIA OCEANIA Manila Sales Office TOTO ASIA OCEANIA Bangkok Sales Office Indonesia （ TOTO MANUFACTURING (THAILAND) CO.LTD. P.T.SURYA TOTO INDONESIA related company) Singapore TOTO ASIA OCEANIA PTE. LTD. （Sales / general HQ） Viet Nam Malaysia TOTO VIETNAM CO.,LTD. （Production / sales) TOTO MALAYSIA SDN.BHD. （Production) 31 (16 sales and 20 production) bases in 17 countries

Copyright © TOTO LTD. All Rights Reserved. Introduction of TOTO Washlet 4 Company profile ■Sales composition and major products in each business segment Sales composition Domestic housing equipment business

New domain 4％ Housing equipment Housing (domestic: new equipment constructions) (overseas) 24％ 22％・Built-in bathroom ・Build-in kitchen ・Sanitary ware Housing equipment (domestic: remodeling） 50％

Consolidated profit:5,738 bil. yen (March, 2017) ・Washlet ・Lavatory ・Faucet Overseas housing equipment business New domain business

・Faucet ・Washlet

・Sanitary ware ・Bathtub ・Hydrotect® ・Ceramic products

2014 PF3（tank-type） Accumulatedsales 2012 PF2（Instantaneous） 4,0004,0004,000 313131 200200200 1999 2011 PF1（tank-type） 3,0003,0003,000 “Apricot” 1993 Tankless toilet

2,0002,0002,000 （

100100100 1980 210210210 10000units Original Washlet

1,0001,0001,000

）

2005 1998 2010 2015

00 0 1980 000

2015

2010

2005

1998

1980

2015

2010

2005

1998

1980

2015

2010

2005

1998 1980 Reached 40mil. units in July 2017. In 2019, we will reach 50 mil. Units ⇒No backflow-related accidents!!! Copyright © TOTO LTD. All Rights Reserved. Introduction of TOTO Washlet 8 Product lines ■Japan ■Overseas Apricot Full-cover D-shape Transitional Renesse (elongated/regular)

NEOREST NEOREST EX NEOREST LE Design-oriented AH/RH remote controls

Copyright © TOTO LTD. All Rights Reserved. Introduction of TOTO Washlet 10 Backflow prevention construction of Washlet Construction of Washlet for Japan, USA & Asia Washlet Primary backflow Other than Europe prevention device Atmospheric C Vacuum Breaker

Nozzle

Inlet Heat exchanger Dynamic check valve

a vacuum breaker between the nozzle and heat exchanger A φ0.8mm-wire is inserted in all seal faces The result must be within the threshold (=no backflow)

Washlet Atmospheric Vacuum Breaker Primary backflow prevention device Nozzle

Heat exchanger Inlet

Airgap unit

- An airgap unit in addition to the vacuum breaker - Break water connection by physical construction There shall be no backflow when a wire is stuck in any of the sealing faces

Copyright © TOTO LTD. All Rights Reserved. Introduction of TOTO Washlet 13 Certification Requirements in each country Certificate 【USA/Japan】 for appliances Performance on backflow prevention is evaluated by testing: USA:ASSE1001 Japan: JIS S 3200-4, JIS S 3200-5

Same test method, different criteria C 【Europe】 Performance on backflow prevention must be assured by construction. EN1717-based national standards Germany: DVGW W540 UK: BS EN1717

There must be a physical “airgap” construction on the primary side of connection or on the inside Washlet are certified as plumbing device by assuring safety against backflow in following manners: -In Japan, USA and Asia: Backflow prevention performance -In Europe:Copyright © TOTO Backflow LTD. All Rights Reserved. prevention device design 14 【Confidential】 Construction required by EN1717

-Backflow prevention construction is determined based on the risk level of backflow -Requirements are on the “design” of backflow prevention device -Backflow prevention performance of device incorporating the system is not required

Copyright © TOTO LTD. All Rights Reserved. Introduction of TOTO Washlet 15 Reference Why such strict requirements in EU? Black Death Spread of the Black Death in Europe (1346–1353) The Black Death was one of the most devastating pandemics in human history, resulting in the deaths of an estimated 75 to 200 million people in Eurasia and peaking in Europe in the years 1346–1353. Although there were several competing theories as to the etiology of the Black Death, analyses of DNA from victims in northern and southern Europe published in 2010 and 2011 indicates that the pathogen responsible was the Yersinia pestis bacterium, probably causing several forms of plague.

EU proposed strict requirements in fear that this might happen again. Risk of backflow in Washlet Nozzle unit

Overflow level of ceramic

Toilet Bowl Nozzle extends to the rim surface of bowl, and backflow can occur when 4 conditions are fulfilled simultaneously: 1) Toilet bowl is clogged Accumulated sales of Washlet products by 2) Nozzle is extended Japanese manufacturers exceed 100 million 3) Flow conduit is opened units, but there has been no reported incident of backflow-related accidents! 4) NegativeCopyright © TOTO pressure LTD. All Rights Reserved. on primary side タイトル/サブタイトル 17 Backflow prevention test of an actual vacuum breaker

No rise in Tested with water level inappropriate backflow prevention device

Insert φ0.8mm wire in specified positions and apply back pressure of 84.5kPa 44mm rise up OK NG With appropriately designed vacuum breakers, the same level of backflow prevention performance as airgap construction can be acquired Copyright © TOTO LTD. All Rights Reserved. Problem of airgap construction in Europe

USA/JAPAN Europe Backflow Atmospheric Prevention Vacuum Airgap Device Breaker Tank and feeding Required - components pump cost (production) 1 1.7 ・Minimize potential to backflow ・Implement to minimal Feature ・Compromised reliability size design due to additional parts and noise of pump

Actual No backflow No backflow Performance incident incident

Although the airgap constructions help minimize the risks of backflow, there are numerous negative factors such as increase in costs, noises, compromised reliabilityCopyright and © TOTO burdens LTD. All Rights Reserved. on consumers タイトル/サブタイトル 19 AS/NZS 3500 Part1 Backflow prevention requirements in Australia

There are 2 means of backflow prevention for Washlet

Nozzle unit Common layout for all existing Washlets

Overflow level of ceramic

Water inlet Airgap

Overflow level

Currently, there are only 2 options left for the manufacturers: -Installation with RPZ backflow device; or -Airgap construction in the water conduit to raise the overflow level

Copyright © TOTO LTD. All Rights Reserved. タイトル/サブタイトル 22 Question: If the vacuum breaker has the same level of backflow prevention performance as airgap construction, and if the reliability of the system is assured by product certification, could it be considered sufficient? Copyright © TOTO LTD. All Rights Reserved. Introduction of TOTO Washlet 23 Proposal from TOTO In order to help promote both water efficient plumbing fixtures and backflow prevention devices, we would like to make the following proposal:

A douche outlet installed at least 25mm above the overflow level of the pan, at any position, does not require an external backflow prevention device; Or if the device incorporates backflow prevention constructions, its performance shall be AS/NZS 2845.1 compliant.

If the douche outlets is less than 25mm above the overflow level of the pan, at any position, a As evidence of compliance, “high hazard” backflow prevention device must test by approved test labs and be installed unless the device incorporates an conformity certificate (marking) AS/NZS 2845.1 or AS2845.2 compliant shall be required backflow prevention device. For plumbing fixtures, backflow prevention performance should be required, and for devices that do not fulfill the requirements, installation of RPZ backflow prevention device should be made available as an alternative option. Copyright © TOTO LTD. All Rights Reserved. Introduction of TOTO Washlet 24 Thank you for your attention!

Deliver “Japanese comfort” to toilets around the world!

★

Make the world smile with eco-friendly Comfortable products

Reference Australia is no exception: New South Wales and Victoria are facing the problem of water scarcity

Australia leads the international standardization of water efficiency in order to help realize sustainable society. TOTO would like to contribute in water conservation by introducing water-efficient toilet bowls triggered by the sales of Washlets.

Copyright © TOTO LTD. All Rights Reserved. Introduction of TOTO Washlet 29 Company profile ■Domestic bases As of June 2016 【Sales bases】・Branch offices 13 locations ・showrooms 103 locations Hokkaido Tohoku Kita Kanto 【Production sites】 22 locations Shinetsu Tokyo Hokuriku

Chubu Higashi Kanto

Kansai Yokohama

Shikoku Chigasaki Factory Chugoku ●

Kyushu ● HQ/Kokura No.1 Factory

Kokura No. 2 Factory Shiga/Shiga No.2 factory Kokura No.3 Factory

35.5mm

Nozzle is located below the critical line, but at the exit of vacuum breaker, a physical airgap of 25mm is secured.

2 Fluid presenting no human health hazard. Fluid recognised as being fit for human consumption, including water taken from a potable water distribution system, which can have undergone a change in taste, odour, colour or a temperature change (heating or cooling).

3 Fluid representing some human health hazard due to the presence of one or more harmful substances.

4 Fluid presenting a human health hazard due to the presence of one or more toxic or very toxic substances1) or one or more radioactive, mutagenic or carcinogenic substances. 5 Fluid presenting a human health hazard due to the presence of microbiological or viral elements.