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  • How does a Firesafe valve work? (FAQ #36)

    The Firesafe™ Cannula Valve/Firesafe™ Nozzle comprises a spring loaded valve probe contained within a moulded housing. In normal condition the valve is held open by means of a T‐bar arrangement on the valve probe at the downstream end that sits on a fusible ledge. The valve is actuated when the fusible ledge softens as a result of the heat from an approaching fire in the oxygen tubing.

  • Can a Firesafe Cannula Valve with used with a CPAP ventilator with heated humidifier? (FAQ #38)

    Yes, the Firesafe Cannula Valve can be fitted to the small bore oxygen tubing inlet, whether that is fed into the CPAP ventilator or into a port in the patient breathing circuit. The temperatures of the gas delivered are very low in comparison to the activation temperature of the valve, so there is no risk of it being activated by warm humid air used for ventilation.

  • What are your terms and conditions of sale? (FAQ #39)

    A Selective Distribution Agreement will be in place between BPR Medical our distribution partners and we encourage you to consult this document as it should answer any questions you have. Please contact cs@bprmedical.com if you are still unable to find the answer to your query.

  • How do I set up an account? (FAQ #40)

    If you wish to set up an account, please contact Customer Services at cs@bprmedical.com providing the following details:


    • The name of your accounts contact
    • Company name
    • Registered office address
    • VAT registration number (EU customers)

    Contact details

  • What is your VAT registration number? (FAQ #42)


  • What is your company registration number? (FAQ #43)

    03601325 (English Register)

  • Where can I get a price list? (FAQ #45)

    Price lists are available from cs@bprmedical.com. Please contact us if you need an additional copy

  • When does the warranty period start? (FAQ #51)

    The warranty period starts on the day the products leave our premises.

  • Do you accept credit card payments? (FAQ #52)

    Yes we are able to accept credit card payments.

  • What currencies do you accept? (FAQ #53)

    All payments should be made in British Pounds Sterling (GBP).

  • Will the Firesafe™ Cannula Valve fit directly to standard oxygen delivery tube? (FAQ #57)

    It is important to use the preferred connectors when assembling the Firesafe™ Cannula Valve into an oxygen delivery circuit.  The international standard (ISO 13544-2 – Respiratory Therapy Tubing and Connectors) prescribes exact dimensions for the barb connector on ‘male’ oxygen therapy connectors. The corresponding ‘female’ flexible connectors (or ‘trumpet connectors’) have been designed by patient circuit manufacturers to properly fit this barb size. This standard was driven by concern over misconnection and disconnection of circuits delivering a variety of drugs to patients, including medical gases such as oxygen. It is important that the standards defined by ISO 13544-2 are consistently applied to reduce the potential for misconnection and disconnection problems.

    A typical oxygen delivery circuit might include a 3m extension hose with trumpet connectors at each end (e.g. Salter Labs Pt# 2010-10-50), connected from the oxygen source to the upstream connector of the Firesafe™ Cannula Valve. The downstream connector of the Firesafe™ Cannula valve is connected to a 30 cm Cannula Valve with trumpet connector (e.g. Salter Labs Pt# E1600-1-50).

    The Instructions for Use for the Firesafe™ Cannula Valve (Doc# 702-0040) also provide additional information and clear illustrations on the preferred method of connecting the device to a patient circuit.

  • How often should the Firesafe™ Cannula Valve be replaced? (FAQ #58)

    The Firesafe™ Cannula Valve has an intended life of 4 years from the date of manufacture. The date of manufacture is laser engraved ont he side of the device. A device should be replaced when the 4 year intended life has elapsed.


    If any Firesafe™ product appears damaged it should be replaced.

  • Does the Firesafe™ Cannula Valve/Firesafe™ Nozzle need to be sterilised? (FAQ #59)

    No, it is not necessary to sterilise the Firesafe™ cannula valve or Firesafe™ Nozzle at any time and no attempt should be made to do so.

  • Can the Firesafe™ Cannula Valve/Firesafe™ Nozzle washed/cleaned and reused? (FAQ #60)

    No, this is a single use device, no attempt must be made to reuse the device on another patient or clean it internally. A mild soap solution may be used to clean the outside of the device taking care not to allow any liquid to enter either orifice.

  • Do Firesafe™ devices affect the delivery of oxygen from oxygen conservers/pulse-dose/DODDs devices? (FAQ #63)

    The restriction to flow of Firesafe Cannula Valves is minimal. We recommend that the patient's ability to trigger the conserving device reliably is tested with the exact set of accessories intended to deliver oxygen.

  • How many Firesafe™ devices can be fitted into an oxygen circuit? (FAQ #65)

    Where an oxygen concentrator is being used, it is recommended to install a Firesafe™ Nozzle at the interface between with the concentrator oxygen outlet and the oxygen tubing to isolate the oxygen supply at source in the event of a fire. A Firesafe™ Cannula Valve should then be installed close to patient, normally at a position on the cannula tubing close to the chest.

  • Do Firesafe™ devices affect the oxygen flow rate? (FAQ #66)

    The Firesafe™ Cannula Valve and Firesafe™ Nozzle have been carefully designed to minimise resistance to the flow of oxygen.

    Considering the worst case – an oxygen concentrator with a non-backpressure compensated flowmeter calibrated at atmospheric pressure. If two Firesafe™ valves were installed in series, at an oxygen flow of 5 l/min, the actual oxygen flow would be around 5.05 l/min when the flow indicator reads 5.00 l/min.


  • What is the temperature it ‘triggers’ at? (FAQ #68)

    The melting temperature of the fusible ledge is in excess of 200 °C (392 °F).

  • Where should you fit Firesafe™ Cannula Valves/Firesafe™ Nozzles in an oxygen circuit with a cold water bubble humidifier? (FAQ #71)

    Firesafe™ Cannula Valves and Firesafe™ Nozzles should be installed downstream (of the normal oxygen flow), between the humidifier and the patient. There are no other particular or special requirements when fitting Firesafe™ Cannula Valves/Firesafe™ Nozzles in an oxygen circuit with a cold water bubble humidifier.

  • What quantities are available and can I get a different amount? (FAQ #72)

    Firesafe™ Cannula Valves are available in boxes of 100 units, which comprise 5 bags of 20 in each box. Only multiples are 100 are available, part number 827-0003.


    Please note that bags of 20 are marked with part number 827-0004 but these cannot be purchased from BPR Medical.


    Firesafe™ Nozzles are available in blister packs of 10 units and can be purchased only in multiples of 10.

  • Do you have any facts and figures/statistics about the number of fires associated with home oxygen equipment? (FAQ #74)

    We have published a white paper based on statistics kindly provided to us under the UK Freedom of Information Act, information from the US national Fire Protection Association (NFPA) and the Maine Study in the US. To obtain a copy of the whitepaper, please contact cs@bprmedical.com


    The NFPA occisionally publish statistics from the US. Some of the more recent and relevant publicaitons can be found here:







  • What are the optimum shipping quantities for Firesafe™ Cannula Valves (i.e. we have fixed prices from shipping agents based upon weight and dimensions)? (FAQ #75)

    Shipping weights and dimensions are as follows:


    100 Firesafe™ Cannula Valves:

    Mode of Supply: 5 bags of 20 in a box

    Dimensions:  18.6 cm x 12 cm x 4 cm

    Gross weight: 0.5 kg


    3000 Firesafe™ Cannula Valves:

    30 of the above boxes in a large carton

    Dimensions: 62 cm x 15 cm x 47 cm

    Gross weight: 15.5 kg

  • What is the correct tariff/customs code for Firesafe™ Cannula Valves/Nozzles? (FAQ #79)

    The UK Trade Tariff Commodity code is 9019 20 000 (Ozone therapy, oxygen therapy, aerosol therapy, artificial respiration or other therapeutic respiration apparatus).

  • Is the Ultralflow Demand Valve latex-free? (FAQ #81)

    Yes. No latex is used in the manuafacture of the Ultraflow Demand Valve.

  • Is the Ultraflow Exhalation Valve latex-free? (FAQ #82)

    Yes. No latex is used in the manuafacture of the Ultraflow Exhalation Valve.

  • Do firebreaks prevent fires from starting? (FAQ #86)

    A firebreak will not prevent a fire from starting in the oxygen tubing or delivery accessory (mask or nasal cannula). It is therefore important that there is no relaxation of any other risk controls applied to reduce the risk of fire. What a firebreak is intended to do is to extinguish a fire that tracks back along the oxygen tubing to the oxygen supply source. This reduces the risk of a fire being spead by the oxygen tubing.

  • Is the Firesafe Cannula Valve available in the United States? (FAQ #83)

    Yes, the Firesafe Cannula Valve is available for sale in the United States and is a Class 1 medical device registered with the FDA. Please see this link to locate a distributor http://www.bprmedical.com/bpr-distributors?country=United+States.

  • Where should firebreaks be installed? (FAQ #84)

    We recommend two firebreaks are installed. The first should be close to the patient e.g. at the interface to a nasal cannula with a very short or no extension tubing. The second should be placed close to the source of supply.

  • Can firebreaks be fitted to a dual lumen cannula fitted to a oxygen conserver? (FAQ #85)

    Yes they can but firebreaks only need to be installed in the oxygen delivery lumen and not in the sensing lumen.