Respirators protect users in two basic ways. The first is by removing contaminants from the air. Respirators of this type include particulate respirators, which filter out airborne particles; and “gas masks” which filter out chemicals and gases. Other respirators protect by supplying clean respirable air from another source.

NIOSH-approved Particulate Filtering Respirators Classification. There are ten classes of NIOSH-approved particulate filtering respirators. These types of respirators use filters to remove particles from the air that is breathed through them. The N, R, and P designations refer to the filter’s oil resistance as described in the table below.

These respirators must be selected for protection against a specific hazard. The cautions, limitations and restriction of use provided with the respirator must be strictly followed. If your mask does not make a tight seal all the way around your face when you inhale, you may breathe contaminated air that leaks around the edges of the face seal.

2024年10月22日 · Crisis capacity strategies Use of respirators beyond the designated shelf life for healthcare delivery. Consider using NIOSH Approved N95 respirators beyond the designated shelf life for care of patients with diseases for which a respirator is recommended during their care (e.g., COVID-19, tuberculosis, measles, varicella).

N95 respirators must form a seal to the face to work properly. This is especially important for people at increased risk for severe disease. Wearing an N95 respirator can make it harder to breathe. If you have heart or lung problems, talk to your doctor before using an N95 respirator. Some N95 respirators may contain latex in the straps.

Atmosphere-supplying respirators provide clean breathing air from a source that is independent of the work area. These respirators protect wearers from many types of airborne contaminants (particles, gases, and vapors) and, in certain cases, oxygen-deficient atmospheres. ASRs include the following: Supplied-air respirators

NPPTL is responsible for testing and approving all respirators used in U.S. occupational settings. The NIOSH approval process ensures respirators meet minimum construction, performance, and respiratory protection standards. Therefore, users can be confident that NIOSH-approved respirators will provide the expected level of protection.

Filtering facepiece respirators that are private labeled are required to have the following statement on the packaging as a special S caution and limitation statement identified on the full label and located in the respirator user instructions: Marketed by xxxxxx (the private label company name). Produced by xxxxxx (the approval holder company ...

2020年4月9日 · Learn what respirators are designed to provide protection from chemical, biological, radiological, and nuclear agents, and what manufacturers produce units meeting the NIOSH standards. The Certified Equipment List is regularly updated as respirators are approved, made obsolete, or the status changes in any way.

2024年10月10日 · A Guide to Atmosphere-Supplying Respirators: Provides information on atmosphere-supplying respirators which protect wearers from airborne hazards by providing clean breathing air. Recommendations for the Selection and Use of Respirators and Protective Clothing for Protection Against Biological Agents : Provides information on selecting proper ...