JPL COVID-19 Respirators

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In order to help provide Personal Protective Equipment (PPE) for the Coronavirus pandemic, a team at NASA’s Jet Propulsion Laboratory (JPL) has created and tested multiple designs of 3D printable respirators and custom filters that are now released as Open Source.

JPL Designed COVID-19 Respirators
Released as Open Source

JPL Performance
Respirator

Tailored fit with high fit factor, dual materials
Adapter for commercial filters

JPL Performance
Respirator

Tailored fit with high fit factor, dual materials
Integrated custom filter

JPL Conforming
Respirator

Conforms to face, flexible filaments
Capable of rapid printing

JPL Comfort
Respirator

Configurable and modular
Optional comfort seal

Designed to meet or exceed N95 performance (Currently Not Certified).
Multiple designs for different situational needs (high performance, mass production, comfort).
Compatible with commercial and custom cartridge filters.
Science driven designs and testing. Build instructions and corresponding test results are available.
Does not disrupt the normal medical supply chain.

RESPIRATORS - BROCHURE

Title Slide: Respirators: JPL Designed 3D Printable COVID-19 Respirators

Slide 2: Mission: JPL designed and tested 3D printed respirators to help with the COVID-19 pandemic response. The designs and instructions for three different types of respirators and the resulting detailed test data is published here. In addition, designs and instructions for custom filters are also included. These designs were tested according to many criteria, including fit checks, breathability, comfort, etc, and the test results are available. Note that these respirators are not certified by NIOSH or any medical institution, so use at your own risk. These designs, instructions, STL files, and JPL’s initial test data are released as Open Source with the hope that companies and individuals who have access to 3D printers, and who want to help, can print or create these for those who need them. We are purposefully not using materials in the normal medical supply chain as it should be kept free to create commercial and certified respirators. We expect and hope that these designs will be commented on and improved
by everyone during and after this pandemic.

Slide 3: To decide which respirator is right for your use, please consider these questions: 1-How are you planning to use the mask? 2-What tradeoffs between comfort and sealing are right for you? (See the test results) 3-What materials do you have available? 4-Which printers do you have access to? 5-What’s your face shape? 6-What’s your face size?

Slide 4: Performance Respirator: The performance respirator design attempts to mimic the face seal geometry of commercial half-face respirators, such as those from 3M, to provide the highest level of fit performance. This is achieved through the use of a two piece assembly that consists of both a flexible and rigid element. The rigid element provides effective attachment for external filter cartridges while the flexible element has an internal lip to provide a conformal seal against the user’s face. The design also allows the front rigid section to be exchanged for compatibility with a wide range of different filter configurations while preserving the face seal and mounting straps.

Slide 5: Performance Respirator – Configurations: The performance respirator design can be easily configured for use with different filter types. By swapping the front rigid element, the respirator can currently be arranged in two different configurations; front adapter compatible with COTS/custom filter cartridges OR with a compact integrated custom filter. Filter Cartridge Mount - In this configuration the rigid section consists of a cover plate that slots into the flexible face seal and provides a filter cartridge attachment point. Currently, the design is configured to be compatible with 3M filter cartridges but the intent is to provide options based on community input. Integrated Custom Filter - In this configuration the front rigid section consists of two pieces with an integrated pleated filter (total surface area of 98 cm2) and provides the most compact arrangement that can fit under a standard face shield. Intake and exhaust both pass through the filter medium and are routed to the sides of the respirator. Additional information on the custom integrated filter can be found in the “custom Filters” section.

Slide 7: Conforming Respirator Fit and Comfort Check: Place the bottom loop over your head and settle down on the back of your neck as shown. Place the mask on your face and pull elastic directly away from you until you feel a firm but not tight pull from the bottom loop. Move the top loop over your head until it rests securely as shown. If necessary tie a new knot to make the elastic loop shorter, tightening the fit. Ensure as you breathe in that the mask tightens against your face and the incoming air only comes through the filter. Also make sure air does not escape out the edges when you breathe out. If air is transferring any way except through the filter, try tightening the strap and/or reorienting the mask on your face. If this remains an issue, try a different size.

Slide 8: Comfort Respirator: Designed to be manufactured and assembled with little expertise and non-specialized equipment. Can be configured to use application with a single port for moderate use or multiple ports for high activity use with support for additional filter cartridges and accessories such as a one-way exhaust valve. This design series can be printed with a rigid or flexible filament.

Slide 9: Comfort Respirator – components: The rigid housing configuration requires an added peel back weather-seal EDPM rubber to ensure a positive seal and wear comfort. The flexible housing configuration can be printed with or without an added seal edge, the added seal provides greater comfort and positive seal assurance during jaw movement. Cleaning of these masks is possible by wiping down with disinfectant/disposable wipes. Masks with no added seal can also be washed by submerging in soapy water/disinfectant solution.

IMAGES

Woman wearing a Conforming Respirator Design

Young girl wearing a Conforming Respirator Design

Performance Design with Integrated Custom Filter

Disclaimer

DISCLAIMER: The designs herein have not been reviewed, cleared, or approved by FDA or other regulatory authority, nor have they received Coronavirus Disease 2019 (COVID-19) Emergency Use Authorizations for Medical Devices. Neither California Institute of Technology (including the Jet Propulsion Laboratory)("Caltech") nor its employees or agents provide any representation or warranty, express or implied, for fitness for a particular purpose, safety, efficacy, or non-infringement of any third party intellectual property rights. Caltech offers these device designs in good faith to help healthcare providers and others prevent the spread of and treat patients with COVID-19. Physicians and other healthcare providers bear full responsibility to convey warnings and obtain patients' informed consent.

In order to help provide Personal Protective Equipment (PPE) for the Coronavirus pandemic, a team at NASA’s Jet Propulsion Laboratory (JPL) has created and tested multiple designs of 3D printable respirators and custom filters that are now released as Open Source.

JPL Designed COVID-19 Respirators
Released as Open Source

JPL Performance
Respirator

JPL Performance
Respirator

JPL Conforming
Respirator

JPL Comfort
Respirator

RESPIRATORS - BROCHURE

IMAGES

Disclaimer

about

news

Ventilator Device

Respirators

PULSE Pendant

PAPR

Surface Testing

Virus Inactivation

In order to help provide Personal Protective Equipment (PPE) for the Coronavirus pandemic, a team at NASA’s Jet Propulsion Laboratory (JPL) has created and tested multiple designs of 3D printable respirators and custom filters that are now released as Open Source.

JPL Designed COVID-19 RespiratorsReleased as Open Source

JPL PerformanceRespirator

JPL PerformanceRespirator

JPL ConformingRespirator

JPL ComfortRespirator

RESPIRATORS - BROCHURE

IMAGES

Disclaimer

Ventilator Device

Respirators

PULSE Pendant

PAPR

Surface Testing

Virus Inactivation

JPL Designed COVID-19 Respirators
Released as Open Source

JPL Performance
Respirator

JPL Performance
Respirator

JPL Conforming
Respirator

JPL Comfort
Respirator