Respiratory Protection

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Respiratory protection for dust, mists, fumes, vapors and other airborne hazards. This section includes disposable filtering facepiece respirators such as N95 and P100, reusable half-mask and full-face respirators, replacement cartridges and particulate filters, and comfort dust masks for nuisance dust where a respirator is not required.

Respirator use is regulated. Follow the manufacturer's instructions, OSHA's respiratory protection standard and your site's written program, which covers medical evaluation, fit testing and training.

What to check before you order

  • NIOSH approval. Choose respirators and filters approved by NIOSH for the hazard you have.
  • Filter class. N filters are for non-oil particulates; R and P filters handle oil aerosols. Gas and vapor cartridges are selected for specific contaminants.
  • Size and fit. Tight-fitting respirators must be fit tested. Order the size and model the wearer passed the fit test in.
  • Change schedule. Your program should set when cartridges and filters are replaced.
  • Comfort masks are not respirators. Don't substitute them where a respirator is required.

See the full safety category, add eye and face protection, or shop disposable masks and PPE from Keystone Safety.

Disposable masks and respirators can also be dispensed from a PPE vending machine, so only trained, authorized workers take them.

Common questions

What does N95 mean on a respirator?

N95 means the respirator is not resistant to oil (N) and filters at least 95 percent of airborne particles in NIOSH testing. It is a particulate filter only and does not protect against gases or vapors, which require the correct cartridge for the contaminant.

Do N95 respirators need to be fit tested?

When an employer requires workers to wear an N95 or any other tight-fitting respirator, OSHA's respiratory protection standard calls for fit testing before first use and at least once a year after that. Your site's written program covers the fit test along with medical evaluation and training.

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