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    Tool · 510(k)

    510(k) Predicate Finder

    Find potential predicate devices for your 510(k) submission. Enter a K-number to find all clearances with the same product code, a three-letter product code to browse clearances directly, or search by device name.

    Product Code: NFB FDA class 2

    Conserver, Oxygen

    Anesthesiology

    View full classification →

    The Conserver, Oxygen (product code NFB) is an anesthesiology device designed to reduce oxygen consumption by delivering oxygen only during inhalation, extending the life of portable oxygen cylinders for patients requiring supplemental oxygen therapy. It is classified as an FDA Class 2 device within the Anesthesiology specialty, requiring 510(k) premarket clearance. No specific regulation number has been assigned to this product code. The device is not flagged as an implant or life-sustaining device.

    510(k) Clearances

    50+ matches
    K Number
    Device Name
    Proxima
    Effortless Oxygen Conserver System Models Effortless Pro and Effortless Mobile
    Apogee
    Demand Nasal Oxygen Cannula, Modified Demand Nasal Oxygen Cannula
    THERAFLOW SINGLE LUMEN AND THERAFLOW DUAL LUMEN
    CHAD THERAPEUTIC EVOLUTION ELECTRONIC OXYGEN CONSERVER WITH MOTION
    CHAD THERAPEUTIC EVOLUTION ELECTRONIC OXYGEN CONSERVER
    MODEL 350G GAS CONSERVER
    CHAD THERAPEUTICS BONSAI MODEL 800
    INOVO, INC. ACCUPULSE SINGLE LUMEN CONSERVING REGULATOR
    FLO-RITE, MODEL 478-1; FLO-RITE II, MODEL 478-1; SIMPULSE II, MODEL 478-2S; NUMATIX, MODEL NCD401; SIMPULSE, MODEL 478-1
    INOGEN SATELLITE CONSERVER, MODEL SC-100
    OXY-SERVE II OXYGEN CONSERVING REGULATOR
    INOVO, INC. INDEPENDENCE OXYGEN CONSERVING REGULATOR
    ACCU02 SYSTEM
    CHAD THERAPEUTICS LOTUS, MODELS OM-700 AND OM-700S
    FLO-RITE
    EOCD
    INOGEN SATELLITE CONSERVER
    CHAD THERAPEUTICS SAGE
    ESSEX HIGH PRESSURE (HP) OCD AND ESSEX ESCORT PNEUMATIC CONSERVER
    INOVO, INC, ECONOMIZER CONSERVING REGULATOR
    EASY PULSE II OXYGEN CONSERVER
    AIRLIFE DEMAND NASAL CANNULA
    6203
    PULSED OXYGEN CONSERVING DEVICE - EVERY BREATH, POCDEB, REACTEB
    CHAD THERAPEUTICS OXYPENUMATIC CYPRESS MODEL 511
    DEVILBISS PD1000
    OPC OXYGEN CONSERVING REGULATOR, MODEL AHG 1968, LIN-7005, MDL-7609, MEM-7612, OPC-830
    CHAD THERAPEUTICS OXYMATIC MODEL 401 AND OXYMATIC MODEL 411
    PM 1800 CONSERVING DEVICE
    MODIFICATION TO CHAD THERAPEUTICS OXYMATIC MODEL 401
    VENTURE IDD OXYGEN CONSERVING DEVICE IDD 20EX AND 50EX
    IMPULSE SELECT
    OCD2001
    CHAD THERAPEUTICS OXYMATIC MODEL 401
    O2N DEMAND-II, VICTOR MODEL OCPR-II
    TRANSTRACHEAL DEMAND OXYGEN CONTROLLER MODEL DOC-3000
    PNEUMATIC DEMAND OXYGEN CONSERVER (PDOC)
    DEMAND OXYGEN CONSERVING DEVICE, DOCD, THE DOC
    PULSED OXYGEN CONSERVING DEVICE, POCD
    SANPO I
    FLOTEC OXYSAVRR (S)
    VICTOR MODEL OCPR OXYGEN CONSERVING PRESSURE REGULATOR
    TRANSTRACHEAL DEMAND OXYGEN CONTROLLER (DOC-2000)
    PULSE DOSE SERIES
    AIRSEP IMPULSE
    OXYPULSE EOC I, EOC II & EOC R
    MODEL IPD OXYGEN CONSERVING DEVICE
    MEDISONIC OXYGEN FLOW CONTROLLER

    What is a Predicate Device?

    A predicate device is a legally marketed device that a new 510(k) applicant uses to demonstrate substantial equivalence. The FDA's 510(k) pathway requires manufacturers to show that their device has the same intended use and similar technological characteristics as one or more predicate devices already cleared for commercial distribution.

    Finding the right predicate is a critical step in 510(k) strategy. Manufacturers typically search for cleared devices with the same FDA product code, which groups devices by their intended use and regulatory classification. This tool helps you identify potential predicates by browsing all clearances within a product code.

    Note that predicate devices must be legally marketed — they cannot be devices that were cleared but never commercialized, or devices subject to a mandatory recall. The determination of substantial equivalence considers intended use, technological characteristics, and performance data.

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