respiratorer

Respiratorer are devices designed to protect the wearer from inhaling hazardous substances in the air. They are a form of personal protective equipment used to reduce exposure to particulate matter, gases, vapors, and infectious aerosols in workplaces and healthcare settings.

Respirators fall into several main categories. Filtering facepiece respirators (FFRs) are disposable masks that seal to the face and filter inhaled air. Elastomeric respirators have reusable faces and replaceable filters or cartridges. Powered air-purifying respirators (PAPRs) use a battery-powered blower to circulate air through filters. Supplied-air respirators (SAR) deliver breathing air from an external system. Self-contained breathing apparatus (SCBA) provide an independent air supply for environments with insufficient ambient oxygen, such as firefighting.

Standards and protection levels vary by region. In the United States, respirators typically undergo NIOSH certification and are regulated by OSHA; in Europe, EN 149 defines FFP classifications (FFP1, FFP2, FFP3). A respirator’s Assigned Protection Factor (APF) indicates the expected reduction in exposure when properly used.

Use and maintenance: selection should consider the hazard, fit, and duration of use. Tight-fitting respirators require fit testing and a user seal check before each use. Respirators must be cleaned, disinfected, inspected for damage, and stored according to manufacturer instructions. Training on donning, doffing, decontamination, and limitations is essential.

Limitations: respirators may not protect against oxygen-deficient atmospheres and may cause discomfort or communication difficulties. They should be part of a broader hazard control strategy that includes engineering controls and administrative measures.