Fit-tested particulate respirator Examples include N95-, KN95-, and FFP2-style respirators |
Multiple filter layers capture airborne particles, while a close facial seal reduces leakage around the edges. |
High protection against airborne particles when the model is genuine, properly fitted, and worn correctly. N95 and FFP2 standards generally specify filtration of at least 95% and 94%, respectively, under their applicable test conditions. |
Crowded indoor spaces, public transport, healthcare settings, poorly ventilated areas, and situations involving fine particles. |
Usually offers the strongest everyday respiratory protection among disposable options. |
Facial hair, poor sizing, gaps, or incorrect positioning can significantly reduce protection. These masks do not replace ventilation or other safety measures. |
| Surgical or procedure mask |
A loose-fitting, fluid-resistant outer layer and disposable filter material help block large droplets and splashes. |
Provides source control and some protection from larger droplets, but the loose fit allows unfiltered air to enter around the sides. |
Routine short-term use, healthcare interactions, and reducing the spread of respiratory droplets. |
Lightweight, widely available, and generally easier to breathe through than a tight-fitting respirator. |
Not designed to create a tight seal and may provide limited protection from small airborne particles. |
| Multi-layer cloth mask |
Washable woven or nonwoven layers mechanically filter some particles and help contain exhaled droplets. |
Performance varies widely with fabric, number of layers, construction, and fit. It is generally less protective than a well-fitting respirator. |
Low-risk settings, short periods of use, and situations where a reusable covering is preferred. |
Reusable, washable, and available in many sizes and shapes. |
Loose weaves, single layers, damp fabric, and gaps can reduce performance. A cloth mask should not be treated as equivalent to a certified respirator. |
| Elastomeric respirator |
A reusable rubber-like facepiece forms a seal and uses replaceable particulate filters or cartridges. |
Can provide high particulate protection when correctly selected, fit-tested, maintained, and used with the appropriate filters. |
Repeated occupational or high-exposure use where a durable, reusable respirator is appropriate. |
Durable face seal, replaceable filters, and potentially lower long-term waste than disposable respirators. |
Requires cleaning, storage, maintenance, and correct filter replacement. Some models with exhalation valves may not provide adequate source control. |
| Powered air-purifying respirator |
A battery-powered blower draws air through a filter and supplies filtered air to a hood, helmet, or facepiece. |
May provide high protection when the complete system is approved, properly maintained, and used according to its instructions. |
Specialized occupational environments, prolonged use, or situations where reduced breathing resistance is important. |
Powered airflow can improve comfort and reduce breathing effort compared with some tight-fitting respirators. |
More expensive and complex; batteries, airflow, filters, cleaning, and training require regular attention. |
| Transparent or clear-panel mask |
A transparent panel allows facial visibility while fabric or filter material covers other areas. |
Protection depends heavily on the design, filtration material, seal, and applicable certification; clear panels may affect breathability and fogging. |
Communication, education, and interactions where seeing the mouth is important, provided the mask is appropriately tested and fitted. |
Improves visibility of facial expressions and lip movements compared with opaque masks. |
Do not assume a clear-panel mask provides respirator-level protection unless it has relevant certification and a reliable seal. |