3M N95 HOME RESPIRATOR WITH FLUID RESISTANCE; 3M N95 HOME RESPIRATOR
DEN060009 · 3M Company · NZJ · May 8, 2007 · General Hospital
Device Facts
Record ID
DEN060009
Device Name
3M N95 HOME RESPIRATOR WITH FLUID RESISTANCE; 3M N95 HOME RESPIRATOR
Applicant
3M Company
Product Code
NZJ · General Hospital
Decision Date
May 8, 2007
Decision
DENG
Submission Type
Post-NSE
Regulation
21 CFR 880.6260
Device Class
Class 2
Indications for Use
It is intended to cover the nose and mouth of the wearer to help reduce wearer exposure to pathogenic biological airborne particulates during public health medical emergencies, such as influenza pandemic. The 3M™ Respirator (Model No. 8612F and 8670F) for Use by the General Public in Public Health Medical Emergencies also protects the wearer from splash and spray of body fluids.
Device Story
Disposable half-facepiece non-powered air-purifying particulate respirator; covers nose and mouth; filters ambient air during respiration; protects against pathogenic biological airborne particulates and body fluid splash/spray. Used by general public during public health emergencies. Relies on close facial fit to prevent air leakage; requires proper handling/disposal to prevent contamination. Does not provide complete protection against infection; should be used with other infection control measures. Benefits include reduced exposure to airborne pathogens; risks include potential exacerbation of cardiac/pulmonary conditions if fit is too tight, skin irritation, and improper use/fit leading to exposure.
Clinical Evidence
No clinical data. Bench testing only; device relies on NIOSH certification (42 CFR part 84) for filtration efficiency and breathability, and biocompatibility testing to mitigate skin irritation risks.
Technological Characteristics
Disposable half-facepiece non-powered air-purifying particulate respirator; polymeric materials; N95 filtration efficiency per 42 CFR part 84 (2007); designed for adult facial fit; non-powered; standalone device.
Indications for Use
Indicated for the general public to cover the nose and mouth to reduce exposure to pathogenic biological airborne particulates and body fluid splash/spray during public health medical emergencies. Not intended for children due to fit limitations. Caution advised for users with underlying cardiac or pulmonary conditions.
Regulatory Classification
Identification
A filtering facepiece respirator for use by the general public in public health medical emergencies is a device that is a disposable half-facepiece non-powered air-purifying particulate respirator intended for use to cover the nose and mouth of the wearer to help reduce wearer exposure to pathogenic biological airborne particulates during a public health medical emergency. The device is made of polymeric materials and is intended to fit closely to the face and to function by filtering particulate material.
Special Controls
*Classification.* Class II (special controls). The special controls are:(1) Certification by the National Institute for Occupational Safety and Health (NIOSH) as a non-powered air-purifying particulate respirator with a minimum filtration efficiency classification of N95, in accordance with 42 CFR part 84.
(2) The FDA guidance document entitled: “Guidance for Industry and Food and Drug Administration Staff; Class II Special Controls Guidance Document: Filtering Facepiece Respirator for use by the General Public in Public Health Medical Emergencies.” See § 880.1(e) for information on obtaining a copy of this guidance document.
Submission Summary (Full Text)
{0}
DEPARTMENT OF HEALTH & HUMAN SERVICES
Public Health Service
MAY - 8 2007
Food and Drug Administration
9200 Corporate Boulevard
Rockville MD 20850
Mr. Jizhong Jin
Senior Regulatory Affairs Associate
3M Company
3M Center: 275-5W-06
St. Paul, Minnesota 55144-1000
Re: K062070
Trade Name: 3M™ Respirator Model Nos. 8612F and 8670F for Use by the General Public in Public Health Medical Emergencies
Evaluation of Automatic Class III Designation
Regulation Number: 21 CFR 880.6260
Regulation Name: Filtering facepiece respirator for use by the general public in public health medical emergencies
Classification: Class II
Product Code: NZJ
Dear Mr. Jin,
The Center for Devices and Radiological Health (CDRH) of the Food and Drug Administration (FDA) has completed its review of your petition for classification of the 3M™ Respirator Model Nos. 8612F and 8670F for Use by the General Public in Public Health Medical Emergencies as over-the-counter devices, under 21 CFR 801 Subpart C. The 3M™ Respirator Model Nos. 8612F and 8670F for Use by the General Public in Public Health Medical Emergencies is a filtering facepiece respirator device. It is intended to cover the nose and mouth of the wearer to help reduce wearer exposure to pathogenic biological airborne particulates during public health medical emergencies, such as influenza pandemic. The 3M™ Respirator (Model No. 8612F and 8670F) for Use by the General Public in Public Health Medical Emergencies also protects the wearer from splash and spray of body fluids. FDA concludes that these devices should be classified into class II. This order, therefore, classifies the 3M™ Respirator Model Nos. 8612F and 8670F for Use by the General Public in Public Health Medical Emergencies, into class II under the generic name, Filtering facepiece respirator for use by the general public in public health medical emergencies. This order also identifies the special controls applicable to this device, and substantially equivalent devices of this generic type.
{1}
Page 2 – Mr. Jizhong Jin
FDA identifies this generic type of device as:
**21 CFR 880.6260** A filtering facepiece respirator for use by the general public in public health medical emergencies is a device that is a disposable half-facepiece non-powered air-purifying particulate respirator intended for use to cover the nose and mouth of the wearer to help reduce the risk of exposure to pathogenic biological airborne particulates during a public health medical emergency. The device is made of polymeric materials and is intended to fit closely to the face and to function by filtering particulate material.
In accordance with section 513(f)(1) of the Federal Food, Drug, and Cosmetic Act (21 U.S.C. 360c(f)(1)) (the act), devices that were not in commercial distribution prior to May 28, 1976 (the date of enactment of the Medical Device Amendments of 1976 (the amendments)), generally referred to as postamendments devices, are classified automatically by statute into class III without any FDA rulemaking process. These devices remain in class III and require premarket approval, unless and until the device is classified or reclassified into class I or II or FDA issues an order finding the device to be substantially equivalent, in accordance with section 513(i) of the act (21 U.S.C. 360c(i)), to a predicate device that does not require premarket approval. The agency determines whether new devices are substantially equivalent to previously marketed devices by means of premarket notification procedures in section 510(k) of the act (21 U.S.C. 360(k)) and Part 807 of the FDA regulations (21 CFR 807).
Section 513(f)(2) of the act provides that any person who submits a premarket notification under section 510(k) for a device may, within 30 days after receiving an order classifying the device in class III under section 513(f)(1), request FDA to classify the device under the criteria set forth in section 513(a)(1). FDA shall, within 60 days of receiving such a request, classify the device. This classification shall be the initial classification of the device type. Within 30 days after the issuance of an order classifying the device, FDA must publish a notice in the Federal Register classifying the device type.
On October 3, 2006, FDA filed your petition requesting classification of the 3M™ Respirator Model Nos. 8612F and 8670F for Use by the General Public in Public Health Medical Emergencies into class II. The petition was submitted under section 513(f)(2) of the act. In accordance with section 513(f)(1) of the act, FDA had issued an order on August 30, 2006, automatically classifying this device into class III, because it was not substantially equivalent to a legally marketed class I or class II device.
In order to classify the 3M™ Respirator Model Nos. 8612F and 8670F for Use by the General Public in Public Health Medical Emergencies into class II, it is necessary that the proposed class have sufficient regulatory controls to provide reasonable assurance of the safety and effectiveness of the device for its intended use.
{2}
Page 3 – Mr. Jizhong Jin
After review of the information submitted in the classification petition and supplements provided in response to FDA questions, FDA has determined that the 3M™ Respirator Model Nos. 8612F and 8670F for Use by the General Public in Public Health Medical Emergencies, as indicated above, can be classified into class II with the establishment of special controls. FDA believes that class II special controls, in addition to the general controls under the act, provide reasonable assurance of the safety and effectiveness of the device type.
In addition to the general controls of the act, the 3M™ Respirator Model Nos. 8612F and 8670F for Use by the General Public in Public Health Medical Emergencies are subject to the following special controls: (1) Certification by the National Institute for Occupational Safety and Health (NIOSH) as a non-powered air-purifying particulate respirator with a minimum filtration efficiency classification of N95, in accordance with 42 CFR part 84 (2007); and (2) The FDA guidance document entitled: “Guidance for Industry and Food and Drug Administration Staff; Class II Special Controls Guidance Document: Filtering Facepiece Respirator for Use by the General Public in Public Health Medical Emergencies.”
FDA believes that special controls are needed to help address the following issues affecting the safety and effectiveness of the filtering facepiece respirator for use by the general public in public health medical emergencies: assuring filtration and breathability, assuring proper fit, avoiding adverse skin reaction, and assuring proper use.
### A. Assuring filtration and breathability
For this type of respirator to reduce wearer exposure to pathogenic biological airborne particulates, it must be made of filter material that is highly efficient in filtering such particles. At the same time, because this type of device depends on the wearer's normal respiration to draw ambient air through the respirator materials and into the lungs, the respirator material must also permit adequate respiration.
### B. Assuring proper fit
The device must fit closely to the wearer's face without any gaps that would allow air to reach the wearer's respiratory tract without passing through the filter material. Otherwise, improper fit of the respirator could result in inhalation of pathogenic biological airborne particulates carried in air that passes around the sides of the device.
{3}
Page 4 - Mr. Jizhong Jin
## C. Avoiding adverse skin reaction
Reducing wearer exposure to pathogenic biological airborne particulates requires that the device be properly fitted to the face. If the respirator material in contact with the skin is not biocompatible, it may cause adverse reactions such as redness, pruritus, and skin irritation.
## C. Assuring proper use
While a filtering facepiece respirator for use by the general public in public health medical emergencies can help to reduce wearer exposure to pathogenic biological airborne particulates in a public health medical emergency where there is a serious risk from such exposure, these devices do not provide complete protection against infection. Even when used correctly and consistently, a filtering facepiece respirator does not eliminate all respiratory exposure, and for many pathogens that may be transmitted through airborne particulates, transmission via other routes is also possible. (Because filtering facepiece respirators for use by the general public in public health medical emergencies have not been tested against specific microorganisms, the extent of protection to be expected against specific pathogens is not known and would vary with particular conditions in any event.)
The respirator should always be used in conjunction with other infection control and respiratory protection measures. In addition, because the outside of the respirator may be contaminated with infectious materials during normal use, proper handling and disposal is important to avoid the respirator itself becoming a vector of transmission of infectious agents.
Further, failure of the user to assure proper fit of the respirator could result in exposure to pathogenic biological airborne particles. Certain populations such as children will be unlikely to achieve a proper fit because respirators are designed and sized for adults.
For users with certain underlying cardiac, pulmonary or related medical conditions, achieving the fit necessary to help reduce their exposure to pathogenic biological airborne particulates may exacerbate their underlying medical conditions raising a concern about their safe use for these populations.
Finally, these respirators have not been established to be safe or effective if reused, and use of a single respirator by multiple users may result in the respirator itself becoming a vector of transmission.
{4}
Table 1 – Issues Requiring Special Control and Recommended Mitigation Measures
| Identified Issues | Mitigation Measures |
| --- | --- |
| Assuring adequate filtration and breathability | NIOSH Certification |
| Assuring proper fit | Fit Assessment testing
Labeling |
| Avoiding adverse skin reaction | Biocompatibility testing |
| Assuring proper use | Labeling |
FDA believes that these special controls, in addition to general controls, will provide reasonable assurances of the safety and effectiveness of the 3M filtering facepiece respirators for use by the general public in public health medical emergencies and substantially equivalent devices.
Section 510(m) of the act provides that FDA may exempt a class II device from premarket notification requirements under section 510(k) of the act, if FDA determines that a premarket notification is not necessary to provide reasonable assurance of the safety and effectiveness of the device type. FDA has determined premarket notification is necessary to provide reasonable assurance of the safety and effectiveness of the device type and, therefore, the device type is not exempt from the premarket notification requirements. Thus, persons who intend to market this type of device must submit to FDA a premarket notification submission containing information on the particular Filtering facepiece respirator for use by the general public in public health medical emergencies that they intend to market. They must receive clearance to market the device from FDA prior to introducing their device into commercial distribution.
{5}
Page 6 – Mr. Jizhong Jin
A notice announcing this classification order will be published in the Federal Register. A copy of this order and supporting documentation are on file in the Dockets Management Branch (HFA-305), Food and Drug Administration, 5630 Fishers Lane, Room 1061, Rockville, MD 20852 and are available for inspection between 9 a.m. and 4 p.m., Monday through Friday.
As a result of this order, you may immediately market this device, subject to the general control provisions of the act and the special controls identified in this order.
If you have any questions concerning this classification order, please contact Sheila A. Murphey, M.D., at 240-276-3747.
Sincerely yours,
Miriam C. Provost
Miriam C. Provost, Ph. D.
Deputy Director for Engineering and Science Review
Office of Device Evaluation
Center for Devices and Radiological Health
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.