Lara sterilizer

Incredible inside & outside

As unique as your practice
The standard versions of the Lara sterilizers already offer the fastest sterilization cycle in their class – including standard documentation. An additional, newly developed upgrade system offers even more speed and extended documentation if you so wish – and ensures you are optimally equipped even if your requirements change.

Sterilization, Hygiene & Maintenance

Sterilization, Hygiene & Maintenance

System Overview



  • Lara incredible outside
    Lara incredible inside

    Lara Sterilizers
    Ready for the future

    Incredible outside
    You don’t need to be a lover of design to appreciate the Lara sterilizers. Their smooth surfaces are comfortable to the touch, the instruments are easy to load and the flat colour screen displays allow you to navigate through the intelligent menu structure quickly and with ease.

    Incredible inside
    Discover the W&H Lara sterilizers down to the smallest detail. So many components, perfectly arranged to offer you complete satisfaction by simplifying the sterilization process while providing you with comprehensive documentation. Unique upgradeability allows you to customise your Lara sterilizer with your personal needs and to comply with regulatory requirements.

    Incredible because

    • Fastest B cycle in its segment
    • Unique upgradeability thanks to Activation Codes
    • Colour touch display for easy navigation
    • Automatic cycle record via high capacity USB stick
    • Optional high end label and cycle report printer
    • Ergonomics and functional design
    • Ideal dimensions to integrate and operate
    • New environmentally friendly packaging
      The new environmentally friendly packaging is completely reusable and recyclable. Plastic components were reduced to a minimum. For 99% of its weight, the new package is made of cardboard and other fully biodegradable substances.
    • Reliable traceability

      Discover simple operation & reliable traceability


      The Lara colour touch screen has been selected and designed to make your daily work easier, faster and more efficient. Lara also offers a comprehensive traceability system customized to your needs.

    • Easy to use

      Easy to use

      The intelligent menu structure of the Lara sterilizers ensures extraordinarily high operating comfort: you can browse to the preset programmes quickly and intuitively using the large colour touchscreen.

    • Data logger

      High capacity data logger

      An high capacity USB drive automatically records the cycle reports throughout Lara’s entire service life. Optionally available: the Lara label and cycle report printer with which you can document the traceability without an additional computer or separate software.

    • User identification

      User identification

      You can also acquire additional features such as user identification with Activation Codes: the user who has loaded/unloaded the sterilizer can be digitally recorded. Users are identified by a 6-digit PIN.

    • Load release confirmation

      Load release confirmation

      Also available as an upgrade: the approval confirmation. This option digitally records the name of the end user and their confirmation of the successful sterilization and/or test cycle.


      Discover unique upgradeability

      Whatever occurs in the future, with the Lara sterilizers you’re well prepared.

      Effectively, their innovative upgradability system offers you a cost-efficient, rapid and customized opportunity to activate additional features to reflect your practice needs or comply with future requirements.


      The four additional features at a glance:

      All in One

      With the "All in One" Activation Code you have all benefits in one go – and ultimately your sterilizer comes at a previously unattainable priceperformance ratio.

      Six steps to your customized sterilizer:

      1. Purchase Activation Code of your choice from your local approved dental supplier.
      2. After receiving the related login code go to activation.wh.com
      3. You specify this code along with the serial number and model of your sterilizer.
      4. Your individual, secure Activation Code is generated.
      5. Enter this code in the menu of your Lara sterilizer.
      6. The feature is available.

      • ioDent<sup>®</sup>

        ioDent®

        With ioDent®, W&H brings the Internet of Things (IoT) directly into you practice – opening up new dimensions in efficiency, convenience, and digital connectivity. The cloud-based platform intelligently connects your W&H devices, making them an active part of your digital workflow.

        Benefit from automated documentation of cycle protocols and routine tests, real-time monitoring, central device management and much more.

        Discover all ioDent® features

      • W&H Steri App

        W&H Steri App

        The W&H Steri App is an advanced smartphone and tablet application that allows controlling and remote monitoring of the sterilizer in your dental practice.

        Main features:
        * Remote control of your sterilizer
        * Advanced traceability with EliTrace
        * Report creation
        * User management
        * Backup functionality

        W&H Steri App


        Discover outstanding performance

        The Lara sterilizers offer you one of the fastest type B in its performance class right from the standard version. And you can improve them even by activating the additional features Eco Dry + and Fast Cycle.

        Eco Dry  + automatically adapts the drying time to the load – and, in doing so, saves time and energy. Additionally available via an Activation Code: a type S fast cycle for unpackaged, semicritical products.

        Reprocessing in less than 23 minutes!


        Lara sterilizer

        supplied with reversible rack, 3 aluminium trays, drain tube, tray holder, 8 GB USB drive, door opening tool, factory test

        Lara 17
        REF 19941122

        Chamber size 17 l

        Lara 22
        REF 19942122

        Chamber size 22 l


        Download Area

        FAQ

        • The sterilizer remains switched OFF.
          POSSIBLE CAUSE
          The main switch or network circuit breaker is OFF.
          SOLUTION
          Activate the main switch or network circuit breaker (ON).

          POSSIBLE CAUSE
          No voltage at the socket.
          SOLUTION
          Check the building electrical supply.

          POSSIBLE CAUSE
          The power cord is not connected properly.
          SOLUTION
          Check and connect the power cord properly. more
        • Should I pouch/wrap my instruments and how long can I store them after sterilization?
          To ensure that your instruments are stored in a sterile state from their successful sterilization until they are used, W&H recommends wrapping them in suitable sterile barrier systems before sterilization. The recommended storage period can be found in the recommendations of the wrapping material manufacturer. For further information, please contact your dealer. more
        • Which water quality should I use for my sterilizer?
          The water quality for sterilizers is internationally specified by standards and directives. The reasons for this are that your sterilizer can be seriously damaged by it or the sterilization can be jeopardized. Consequently, only water with conductivity of less than 15 µS/cm should be used for your W&H sterilizer. The Water treatment devices is especially suited to preparing suitable water (see chapter “Water quality” in the Instructions for Use). more
        • Whom should I contact to validate and maintain my sterilizer?
          Validation shall be carried out by an official authority. Maintenance tasks shall be carried out by a qualified and authorised technician. more
        • Does my sterilizer need any periodic qualification/validation?
          Validation generally comprises a range of tests defined in internationally recognised standards. These tests begin for every device with the factory tests at W&H. In addition, corresponding documentation is included with your device. Prior to commissioning the device at your premises, the technician performs further checks to ensure the device functions correctly. Then, depending on the national/regional laws and directives, the device must be subjected to a so-called renewed performance qualification at regular intervals. For further information, please contact your dealer. more
        • How long should I archive the documentation of regular tests?
          Keep the results according to your country/regional specific laws and guidelines. Those records can be of assistance in case of service as well. more
        • Do I need to document the results of all periodic tests?
          W&H recommends recording all periodic tests, repairs and modifications on the sterilizer in a logbook including date and signature of the person who carried out the test or other activity. Compulsories of recording is regulated by local/national guidelines. more
        • At the end of the cycle, there is residual water in the chamber.
          POSSIBLE CAUSE
          Sterilizer not properly levelled.
          SOLUTION
          Place the sterilizator on a flat, level surface.

          POSSIBLE CAUSE
          Overloaded chamber.
          SOLUTION
          Comply with the maximum load weight limits for each type of load. Always use the chamber rack for trays and cassettes.

          POSSIBLE CAUSE
          Chamber filter clogged.
          SOLUTION
          Remove and clean the chamber filter.

          POSSIBLE CAUSE
          Chamber filter cap mispositioned.
          SOLUTION
          Mount the chamber filter cap properly (see chapter “Monthly or 50-cycle maintenance - Cleaning the chamber filter” in the Instructions for Use).

          POSSIBLE CAUSE
          Load incorrectly placed.
          SOLUTION
          Follow the recommendations as listed in chapter “Load maintenance and preparation” in the Instructions for Use. more
        • Water is leaking at the front of the sterilizer.
          POSSIBLE CAUSE
          Leaks through the chamber door seal.
          SOLUTION
          Clean or replace the door seal. Clean the door surface facing the chamber.

          POSSIBLE CAUSE
          Internal leak.
          SOLUTION
          Contact an authorized W&H service partner. more
        • The cycle report printer does not work.
          POSSIBLE CAUSE
          Printer not properly connected or not powered.
          SOLUTION
          Check the data and power connection to the printer. more
        • The sterilizer is connected to an automated water supply system, there is no clean water in the tank and the automatic water filling does not fill the water.
          POSSIBLE CAUSE
          Water filling system not connected.
          SOLUTION
          Connect the water filling system to the sterilizer. (see ANNEX 7 For water quality requirements see chapter “Water quality” in the Instructions For Use).

          POSSIBLE CAUSE
          When the water filling system attempted to fill the tank, water was temporarily unavailable.
          SOLUTION
          Since the water tank filling is attempted only once in-between cycle execution, this event inhibits water feeding. Switch the sterilizer OFF and then ON again.
          Check the external water supply system.
          Check for water leaks from the sterilizer.

          POSSIBLE CAUSE
          Faulty MIN water level sensor in the clean water tank.
          SOLUTION
          Contact an authorized W&H service partner. more
        • Warning about programmed maintenance.
          POSSIBLE CAUSE
          The maintenance program needs to be carried out.
          SOLUTION
          Contact an authorized W&H service partner. more
        • The sterilization (PROCESS) phase of a sterilization cycle was longer than expected.
          POSSIBLE CAUSE
          The chamber temperature dropped below the minimum threshold and the software performed a successful recovery.
          SOLUTION
          Wait for cycle completion. If the problem occurs frequently, contact an authorised W&H service partner. more
        • The sterilizer enters into “Standby mode” immediately after being switched on.
          POSSIBLE CAUSE
          The unit was turned off while in standby mode.
          SOLUTION
          Press the standby mode button to exit. more
        • When starting a cycle, the chamber door locks but re-opens immediately. The “Open the door” message appears.
          POSSIBLE CAUSE
          Door seal not properly placed.
          SOLUTION
          Ensure that the door seal is correctly inserted around the whole circumference.

          POSSIBLE CAUSE
          Door jammed by external objects or by the load itself.
          SOLUTION
          Remove any objects interfering with the chamber door. Check for interference between the door and the chamber furniture and/or the load. more
        • No cycles are stored in the cycle history menu.
          POSSIBLE CAUSE
          An electronic board was replaced when serviced.
          SOLUTION
          The memory of the old board can not be restored. Consult the cycle history in the USB pen drive. more
        • Stains or spots on instruments.
          POSSIBLE CAUSE
          Instruments rinsed with tap water and not dried before sterilization.
          SOLUTION
          Ensure that instruments are rinsed with distilled or demineralized water and completely dry before they are placed in the sterilizer.

          POSSIBLE CAUSE
          Use of water of poor quality or water containing chemical substances.
          SOLUTION
          Drain both water tanks. Use good quality water (see chapter “Water quality” in the Instructions for Use).

          POSSIBLE CAUSE
          Organic or chemical residues on the instruments
          SOLUTION
          Clean, rinse and dry instruments before placing them in the sterilizer (see chapter “Load maintenance and preparation” in the Instructions for Use.

          POSSIBLE CAUSE
          Dirt in chamber, trays, tray rack.
          SOLUTION
          Clean the chamber and wash the chamber furniture.

          POSSIBLE CAUSE
          Contact between instruments of different materials.
          SOLUTION
          Ensure that instruments of different materials do not touch each other (aluminium, carbon or stainless steel, etc.); place them on different trays or cassettes or pouch them (see chapter “Load maintenance and preparation” in the Instructions for Use).

          POSSIBLE CAUSE
          Scale deposits on the chamber.
          SOLUTION
          Clean the chamber and use good quality water (see chapter “Water quality” in the Instructions for Use). more
        • How do I clean the water tanks and what products should I use?
          Water tank cleaning instructions are provided in the Instructions for Use, chapter “Maintenance”. Information and videos relating to the cleaning of the water tanks and cleaning products can also be found on the Video Tutorial section of this web site. more
        • What is the maximum noise level of the Lara sterilizer?
          The max. noise level of Lara is 66.9 dB. more
        • Do I need to carry out periodic testing on my W&H Sterilizer?
          All W&H sterilizers features test cycles (B&D/Helix test, Vacuum test). Compulsory and frequency of testing are regulated by local/national guidelines. more
        • Warning about consumable replacement.
          POSSIBLE CAUSE
          A consumable needs to be replaced.
          SOLUTION
          Order the requested consumable (door seal, dust filter, bacteriological filter) and replace it. See the chapter “Maintenance” in the Instructions for Use. more
        • How do I change consumable components on my sterilizer?
          Consumable replacement instructions are provided in the Instructions for Use, chapter “Maintenance”. In addition, a video description is available: • in the sterilizer, in the maintenance section of the menu (only for Lisa); • in the Consumables & Accessories and Video Tutorial section of this web site. more
        • Warning about saving to the USB (HTML and SCL files)
          POSSIBLE CAUSE
          The USB mass storage is disconnected or full.
          SOLUTION
          Check presence and condition of the USB pen drive. If the problem persist, contact an authorized W&H service partner. more
        • What is validation?
          Validation is a testing procedure carried out by an official authority, proving the effectiveness of your sterilizer. Compulsories and frequency of validation are regulated by local/national guidelines. more

        Instructions for use

        Find all languages of the Update Hygiene and Maintenance (EN ISO 17664:2017) in the Download Centre.

        Videos & Tutorials

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      • Lara sterilization cycles

        Sterilization cycle B-Universal 134 B-Prion 134 B-Universal 121 S FAST 134 (optional)
        Temperature: 134 °C 134 °C  121 °C 134 °C
        Holding time (minutes): 4 18.5 20.5 3.5
        Total cycle duration
        (minutes) including
        complete drying:
        Lara 17
        Automatic from
        25 to 51
        37
        Automatic from
        40 to 65
        52 41 to 73 20 to 22
        Lara 22
        Automatic from
        28 to 55
        39
        Automatic from
        40 to 68
        54 42 to 76 20 to 22
        Lara 17 loads:
        Lara 22 loads:
        maximum solid 4.5 kg/typical 2 kg/maximum porous 1.5 kg
        maximum solid 5.5 kg/typical 2 kg/maximum porous 2 kg
        max. unwrapped 2 kg
        max. unwrapped 2 kg
        Lara 17/22 containers load: maximum 9 kg maximum 9 kg
        Test cycles: Helix/Bowie Dick/Vacuum test

        Items supplied with: reversible rack, 3 aluminium trays, drain tube, tray holder, 8 GB USB drive, door opening tool, factory test  

        Lara

        Trade name: Lara
        Type: RIL-117 RIL-122
        Chamber size: 17 l 22 l
        Power supply: 200–240 V AC; 50/60 Hz; 10 A
        Power consumption: 2.0–2.4 kW
        Overall dimension
        (width x height x depth):
        465 x 452 x 646 mm
        Weight: 42.5 kg 44 kg
        Main / Used water tanks: 4.8/4.8 l
        Working range: 7 to 15 cycles
        Usable space in chamber
        (width x height x depth)¹:
        195 x 195 x 312 mm 195 x 195 x 400 mm
        Connection types: 2 USB ports (5 as option), integrated automatic water filling valve

        (1) Usable space is referred to standard rack configuration.

        Lara sterilizers were designed, certified and validated with the most stringent directives and standards:

        N°2017/745

        Medical Device Regulation

        IEC 61326-1

        Electromagnetic compatibility

        2014/68/EU

        Pressure equipment Directive

        IEC 61010-1

        Safety requirements sterilizer

        EN 13060

        Small steam sterilizer

        IEC 61010-2-040

        Specific requirements for steam sterilizer

        IEC 61770

        Electric appliances connected to the water mains

        2012/19/EU

        Waste Electrical and Electronic Equipment

        The sterilizer can be validated according to EN ISO 17665-1