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Masks intended for Working Environments

man withe non-medical mask

BNQ 1922-900
Masks intended for Working Environments — Attestation Document

The attestation document BNQ 1922-900 Masks intended for Working Environments, published in December 2020, serves as a reference to the attestation program that enables mask manufacturers and distributors to have the conformity of their products recognized, and enables employers, workers, and consumers to quickly identify quality products.

In working environments, the Commission des normes, de l’équité, de la santé et de la sécurité du travail (CNESST) prescribes in its Guide de normes sanitaires en milieu de travail – COVID-19, the wearing of suitable eye protection and a surgical mask or a mask attested by the BNQ when physical distancing cannot be respected. The development of this attestation document thus responds to the CNESST’s desire to offer an alternative to surgical masks. The attested masks are designed for use in working environments other than clinical settings and environments where people have symptoms that are consistent with COVID-19.

As a filtering barrier, the mask attested by the BNQ can protect the immediate environment from the user if the user is carrying a virus such as SARS-Cov-2 and is contagious, but is not presenting symptoms (pre-symptomatic or asymptomatic). Owing to its performance characteristics in filtration efficiency and differential pressure, this mask also aims to reduce exposure of the user to droplets from a person who is not presenting symptoms (pre-symptomatic or asymptomatic), but is carrying a virus that is believed to be transmitted primarily via droplets, such as the SARS-Cov-2 virus, and is contagious.

The attestation document BNQ 1922-900 establishes, for businesses, the quality and performance requirements of masks intended for use in working environments, whether reusable or single use, with or without a removable filter. It also specifies the testing methods for laboratories to verify compliance with quality and performance requirements.

→ Download Document BNQ 1922-900 and Application Form ←

12828ANGBNQ 1922-900 Masks Intended for Working Environments - Attestation Document
PROJECT IN PROCESS (planned date for publication: Undetermined)
12827FRNBNQ 1922-900 Masques destinés aux milieux de travail - Fascicule d'attestation
Draft Modification (to Be Published)
Version Language Publication date Edition Updated on No. of pages Price
1922-9001922-900:PDFPDFFrench2020-12-171M1 Projet de modification53Free

Members of the technical committee

Number of committee members: 11
Mr. Daniel BergeronLogistik Unicorp
Mr. Stéphane CaronInstitut national de santé publique du Québec
Mr. Valério IzquierdoGroupe CTT
Mr. Charles LabrecqueCommission des normes, de l'équité, de la santé et de la sécurité du travail
Mr. Sébastien LeclercNoriske
Mr. Alberto MoralesInstitut de recherche Robert-Sauvé en santé et sécurité du travail (IRSST)
Ms. Françoise PâquetConseil québécois du commerce de détail (CQCD)
Ms. Aurélie RisisamoutTC Transcontinental
Ms. Michelle SecoursFrëtt Design/Frëtt Solutions
Ms. Carine VilleneuveQSD
Mr. Martin VézinaAssociation Restauration Québec (ARQ)

Press review



Marque de certification

This attestation is addressed to manufacturers and distributors of masks intended for use in working environments.

The lots of masks attested are distinguishable due to distinctive marking that enables CNESST inspectors to confirm to workers that their protection is adequate for their activities.

Purpose and Scope (English version available soon)

Diagram of the certification process (French only)

Q&A (French only)

Information session (French only)

  • Enregistrement de la séance d’information du 12 janvier 2021 (vidéo YouTube)
  • Matériel de présentation (PDF)

Companies holding an attestation letter

No result


Nathalie Dupont, Eng.
Program Leader
Bureau de normalisation du Québec
Tel.: 418-652-2238 / 1-800-386-5114, ext. 2535
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