The AirFit N20 channels airflow non-invasively to a patient from a positive airway pressure (PAP) device such as a continuous positive airway pressure (CPAP) or bilevel device.

The AirFit N20 is:

o to be used by patients weighing more than 66 lb (30 kg) for whom positive airway pressure has been prescribed
intended for single patient re-use in the home environment and multi-patient re-use in the ● hospital/institutional environment.

Device Description

The ResMed AirFit N20 is a non-invasive vented respiratory mask that provides a silicone air seal around the patient's nose and upper lip. The mask is held in place with adjustable head straps. Air flow from a positive air pressure (PAP) source is directed to the patient's airway non-invasively. It connects to a conventional PAP device air delivery hose via a standard 22mm swivel.

The AirFit N20 comprises 4 subassemblies: headgear, frame, cushion and elbow/short tube. The exhaust port is incorporated into the elbow/short tube assembly. For home use, the mask may be cleaned in warm soapy water.

The AirFit N20 is a prescription device supplied non-sterile.

AI/ML Overview

The provided document is a 510(k) summary for the ResMed AirFit N20, a vented nasal mask. It primarily focuses on demonstrating substantial equivalence to a predicate device (AirFit N10) rather than presenting a detailed study proving the device meets specific performance acceptance criteria for a novel AI or diagnostic algorithm.

Therefore, many of the requested items, particularly those related to a study proving new device performance against acceptance criteria for an AI or diagnostic algorithm, are not present in this document. The document describes non-clinical testing for performance characteristics rather than a study with a test set, ground truth, experts, or a comparison to human readers.

Here's an analysis based on the information available:

1. A table of acceptance criteria and the reported device performance

The document does not provide a formal table of quantitative acceptance criteria alongside actual reported performance values for each criterion. It broadly states that "Testing confirmed that the new device met the predetermined acceptance criteria."

However, it lists the types of non-clinical testing conducted, which imply the areas where performance was assessed:

CO2 rebreathing
Total mask flow
Flow resistance
Through impedance
Mechanical integrity (simulated normal use and reasonable abuse, home cleaning, multi-patient reprocessing, transportation, storage)
Biocompatibility

2. Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)

This information is not applicable or provided in the context of this 510(k) summary for a respiratory mask. The "test set" here refers to the physical devices undergoing engineering and biocompatibility testing, not a dataset for an algorithm. There is no mention of data provenance in the sense of patient data.

3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience)

This is not applicable as the document describes non-clinical engineering and biocompatibility testing of a physical medical device, not an AI or diagnostic algorithm requiring expert-established ground truth from images or patient records.

4. Adjudication method (e.g. 2+1, 3+1, none) for the test set

This is not applicable for the type of testing described (engineering and biocompatibility of a respiratory mask).

5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance

No such study was done or is mentioned. This document pertains to a physical medical device (mask), not an AI-assisted diagnostic or an algorithm that would involve human readers.

6. If a standalone (i.e. algorithm only without human-in-the loop performance) was done

This is not applicable. The device is a respiratory mask, not an algorithm.

7. The type of ground truth used (expert consensus, pathology, outcomes data, etc)

For the non-clinical testing, the "ground truth" or reference for performance would be established engineering standards (e.g., ISO 17510-2, ISO 10993 series) and design specifications. For example, CO2 rebreathing would be measured against limits defined by standards, and biocompatibility would be assessed against the requirements of ISO 10993.

8. The sample size for the training set

This is not applicable as the document describes a physical medical device, not an algorithm that requires a training set.

9. How the ground truth for the training set was established

This is not applicable.

Summary

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Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is an emblem featuring a stylized caduceus, which is a symbol often associated with healthcare and medicine.

Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002

May 2, 2016

ResMed Ltd. % Larissa D'Andrea Director, Government and Regulatory Affairs ResMed Corp 9001 Spectrum Center Boulevard San Diego, California 92123

Re: K153673

Trade/Device Name: AirFit N20 Regulation Number: 21 CFR 868.5905 Regulation Name: Noncontinuous Ventilator (IPPB) Regulatory Class: Class II Product Code: BZD Dated: March 23, 2016 Received: March 25, 2016

Dear Larissa D'Andrea:

We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food. Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.

Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in

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the quality systems (OS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address

http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to

http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.

You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address

http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.

Sincerely yours,

Tejashri Purohit-Sheth, M.D.

Tejashri Purohit-Sheth, M.D. Clinical Deputy Director DAGRID/ODE/CDRH FOR

Erin I. Keith, M.S. Director Division of Anesthesiology, General Hospital. Respiratory. Infection Control and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration Indications for Use

Form Approved: OMB No. 0910-0120 Expiration Date: January 31, 2017 See PRA Statement below.

510(k) Number (if known) K153673

Device Name: AirFit N20

Indications for Use (Describe)

The AirFit N20 channels airflow non-invasively to a patient from a positive airway pressure (PAP) device such as a continuous positive airway pressure (CPAP) or bilevel device.

The AirFit N20 is:

o to be used by patients weighing more than 66 lb (30 kg) for whom positive airway pressure has been prescribed
intended for single patient re-use in the home environment and multi-patient re-use in the ● hospital/institutional environment.

Type of Use (Select one or both, as applicable)

区 Prescription Use (Part 21 CFR 801 Subpart D) □ Over-The-Counter Use (Part 21 CFR 807 Subpart C)

CONTINUE ON ANOTHER PAGE IF NEEDED)

This section applies only to requirements of the Paperwork Reduction Act of 1995. DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.

The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this

burden, to: Department of Health and Human Services Food and Druq Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov

"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."

FORM FDA 3881 (8/14)

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510(k) SUMMARY
[As required by 21 CFFR 807.92(c)]

Date Prepared	December 17th, 2015
Company Name /Owner	ResMed Ltd1 Elizabeth Macarthur DriveBella Vista, NSW, 2153 Australia
Prepared & submittedby	Mr. Kim Kuan LEESenior Regulatory Affairs ManagerTel: + 61 2 8884 2232Fax: + 61 2 8884 2004kim.lee@resmed.com.au
Official Contact	Miss Larissa D'AndreaDirector, Government and Regulatory AffairsResMed Corp.9001 Spectrum Center BlvdSan Diego CA 92123 USATel: +1 858 836 6837Fax: +1 858 836 5519larissa.d'andrea@resmed.com
Device Trade Name	AirFit N20
Device Common Name	Vented Nasal Mask
Classification &Classification Name	21 CFR 868.5905, 73 BZD (Class II)Accessory to Noncontinuous Ventilator (IPPB)
Legally MarketedPredicate Devices	AirFit N10 (K132887)
Device Description	The ResMed AirFit N20 is a non-invasive vented respiratory maskthat provides a silicone air seal around the patient's nose and upperlip. The mask is held in place with adjustable head straps. Air flowfrom a positive air pressure (PAP) source is directed to the patient'sairway non-invasively. It connects to a conventional PAP device airdelivery hose via a standard 22mm swivel.The AirFit N20 comprises 4 subassemblies: headgear, frame, cushionand elbow/short tube. The exhaust port is incorporated into theelbow/short tube assembly. For home use, the mask may be cleanedin warm soapy water.The AirFit N20 is a prescription device supplied non-sterile.
Intended Use	The AirFit N20 channels airflow non-invasively to a patient from apositive airway pressure (PAP) device such as a continuous positiveairway pressure (CPAP) or bilevel device.The AirFit N20 is:• to be used by patients weighing more than 66 lb (30 kg) for whompositive airway pressure has been prescribed• intended for single patient re-use in the home environment andmulti-patient re-use in the hospital / institutional environment

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Submission reason New Device

Similarities and differences with the predicate device

predicate AirFit N10 (K132887): . same intended use
- same operating principle ●
- . similar construction materials and design that incorporate:

The AirFit N20 has the following similarities to the previously cleared

A silicone elastomer cushion interface that provides air a. seal around the patient's nose and upper lip.
b. The use of a multi-hole vent array to continuously flush out and minimize the amount of CO2 rebreathed by the patient.
A multiple size offering to ensure adequate mask fit over C. the extended patient population.
Use of a 4 attachment point head strap that employ self-ರ. aligning tactile magnetic clips.
A flexible and extensible short tube to mechanically e. decouple the mask from the conventional PAP device air delivery hose to enhance stability and air seal.
f. A 22 mm diameter ISO 5356-1 fully rotatable (360°) conical swivel for connection to the delivery hose.
The use of molded polymeric plastic and silicone air seal g. components and foam padded fabric headgear deemed safe (ref: ISO 10993-1).
. similar performance i.e. both masks have similar operating pressure range, pressure flow and flow impedance characteristics and operate on the same "Pillows, Mirage or Swift" ResMed flow generator settings.
. same operating environments i.e. reuse in the home and hospital / institution environments
. similar manufacturing processes

The main differences between the AirFit N20 and the previously cleared predicate AirFit N10 (K132887) include mask component design and geometry:

The AirFit N20 design incorporates an integrated elbow/short tube ● that is detachable from the frame to enhance usability: the AirFit N10 short tube is permanently moulded to the frame.
. The AirFit N20 plastic frame arms incorporate permanently overmoulded foam padded soft fabrics to enhance patient comfort and usability; the AirFit N10 mask is supplied with fabric soft sleeves that can be fitted to the plastic arms.
For sealing performance, the AirFit N20 silicone cushions employ . a novel feature to anchor and stabilise the interface: the AirFit N10 cushions employ the traditional dual wall design.
. The AirFit N20 exhaust port is located on the elbow component whereas the AirFit N10 exhaust port is located on the frame component.

Verification and validation testing has demonstrated that these differences do not affect intended performance of the mask nor raise new questions of safety or effectiveness.

Non-clinical data The AirFit N20 was designed and tested in accordance with ISO 17510-2: Sleep apnoea breathing therapy - Part 2: Masks and application accessories.

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The scope of non-clinical testing conducted to support the substantial equivalence claim of AirFit N20 to the predicate device included: ● CO2 rebreathing Total mask flow ● ● Flow resistance Through impedance . Mechanical integrity performance of the new device was verified by testing to simulated normal use and reasonable abuse scenarios including: . home cleaning for single patient reuse . reprocessing for multi-patient reuse transportation ● . storage Biocompatibility testing was conducted in accordance with ISO 10993-1, ISO 10993-5, ISO 10993-10, ISO 10993-12, and ISO 10993-17 on new materials used in the manufacture of the AirFit N20 with patient exposure classifications permanent external communicating device (tissue) and /or permanent skin contact. Testing confirmed that the new device met the predetermined acceptance criteria and the performance of the AirFit N20 is substantially equivalent to the predicate AirFit N10 (K132887). Clinical Data Clinical data was not relied upon to demonstrate Substantial Equivalence to predicate devices. Bench testing demonstrates that the new AirFit N20 mask device performs in an equivalent manner and is as safe and as effective as the predicate device. Substantial The new AirFit N20 is substantially equivalent to the predicate device: Equivalence it has the same intended use -Conclusion it has similar technological characteristics it has similar performance characteristics the differences do not raise any new questions of safety or effectiveness it is at least as safe and as effective as the predicate device

Regulation Number and Section

§ 868.5905 Noncontinuous ventilator (IPPB).

(a)
Identification. A noncontinuous ventilator (intermittent positive pressure breathing-IPPB) is a device intended to deliver intermittently an aerosol to a patient's lungs or to assist a patient's breathing.(b)
Classification. Class II (performance standards).