Breathe Safe®
Proof before promotion
Understand current product status and the documents behind it. Keep general filtration research separate from evidence for a specific respirator.
New to respirator terminology?
How to review RZ evidence
A safety leader can begin with a clear benefit, understand the design logic, inspect the supporting method and documents, then take the next responsible step.
A notified body examines the technical design and a representative product, then issues the applicable EU type examination certificate. Check that the certificate covers the exact model you are considering.
Request the current evidence packageA notified body monitors the quality system used to keep production consistent with the approved type. It does not replace the product examination certificate or test report.
Request the current evidence packageHolds inward leakage, penetration, breathing resistance, valve, conditioning, and other required results. Read results alongside the tested configuration and conditions.
Request the current evidence packageRZ Pro 99 is a product in development and is not yet NIOSH approved. It is not currently offered for sale or use as a certified N99 respirator. European certification does not establish United States approval.
Request the current evidence packageIndependent research library
These sources add valuable context about particle size, moisture, and lifecycle impact. They remain separate from RZ product evidence because none of these studies tested the current RZ products.
NIOSH explains that filters do not act like simple screens. Certification testing challenges filtration media near difficult particle sizes and under conservative conditions. This research explains the mechanism but does not replace an RZ product report.
Open the sourceA NIOSH affiliated study found small breathing resistance changes from exhaled moisture under moderate laboratory conditions. The result applies to the tested respirators and conditions, not automatically to every product or workplace.
Open the sourceA separate study found serious water saturation effects during hot, physically demanding work in whole body protective clothing. It demonstrates why the use environment matters, but it did not test an RZ product.
Open the sourceA United Nations Environment Programme review found that reuse count, material, washing, production, transport, and disposal can change the environmental result. An RZ specific environmental claim would still require RZ specific lifecycle evidence.
Open the sourceUnderstand the result
Don’t judge a mask by a filtration percentage alone. These three questions help you understand what the result means.
Results apply to the specific mask and filter combination tested. They do not automatically apply to every product in the same family.
Different test conditions can produce different results. Check that products were tested in comparable ways before comparing their percentages.
A test result alone does not establish approval or suitability for your situation. Check the exact product’s current approval, intended use, and fit requirements.
Product status
Product documents
Ask for the current instructions, certificate, or technical information for the exact model and country of use.
Current product documents available by request. Public download files are being confirmed.
Request this product informationCurrent product documents available by request. Public download files are being confirmed.
Request this product informationCurrent product documents available by request. Public download files are being confirmed.
Request this product informationCurrent product documents available by request. Public download files are being confirmed.
Request this product informationSome detailed reports include confidential information and require a separate review before sharing.
For safety leaders and professional buyers
Request the relevant certificate, report, instructions, approved claim language, and a qualified RZ conversation for your application.
Match the exact model and size before adding a replacement filter. Each item is sold separately. Product details include use instructions and any subscription options.
Confirm the exact certified configuration and country of use before purchasing. European classifications do not establish United States approval.
Matching replacement filter
$22.99 USD
Details and subscription options →
Matching replacement filter
$26.99 USD
Details and subscription options →Confirm the exact certified configuration and country of use before purchasing. European classifications do not establish United States approval.
Matching replacement filter
$19.99 USD
Details and subscription options →
Matching replacement filter
$24.99 USD
Details and subscription options →Keep the reusable mask in service according to its instructions and replace the matching filters when required. For certified respirator configurations appropriate to the same task and market, explore equipment and filter spending with the cost calculator.
Open the ROI and filter cost calculator →Connect with the right team
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