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GONIOBRANCHUS CAVAE
Laboratory Masks & Respirators
Surgical face masks and NIOSH-approved N95 respirators for laboratory personnel protection. Fluid-resistant, comfortable, and available in bulk packaging.
N95
NIOSH Approved
Level 1–3
ASTM Ratings
≥ 95%
Filtration
KN95 Face Mask, Sterile, 20/unit
SKU: ELM-95-1100
Three Ply Ear Loop Face Mask, 50/unit
SKU: ELM-03-4100
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Respiratory Protection for Lab Personnel
Face masks and respirators protect lab workers from aerosols, droplets, and particulates generated during sample processing, chemical handling, and biological work. The level of protection needed depends on your biosafety level, the type of hazard (particulate vs. chemical), and your facility’s safety protocols.
PROTECTION LEVELS
Surgical mask vs. N95 respirator
| Feature | Surgical Mask (ASTM Level 1–3) | N95 Respirator |
|---|---|---|
| Filtration | ≥95% BFE (bacterial filtration) | ≥95% of 0.3 µm particles |
| Fit | Loose-fitting, ear loops | Tight-fitting, nose clip + headbands |
| Fluid Resistance | Level 1: 80 mmHg / Level 3: 160 mmHg | Varies by model |
| Certification | FDA cleared | NIOSH approved |
| Best For | Splash protection, BSL-1/2, droplet precautions | Aerosol-generating procedures, BSL-2+, TB exposure |
🛡️When to Use an N95
N95 respirators are required for aerosol-generating procedures (vortexing open tubes, centrifuging without sealed rotors, sonicating), work with BSL-2+ pathogens in open bench settings, and any task where airborne particulates or infectious aerosols are a concern. N95s require fit testing per OSHA standards to ensure a proper seal—an improperly fitted N95 provides no more protection than a surgical mask.
FREQUENTLY ASKED
Mask & Respirator FAQ
ASTM Level 1 masks provide basic protection with 80 mmHg fluid resistance—suitable for low-risk procedures. Level 3 masks have 160 mmHg fluid resistance and are required for procedures with moderate to high splash risk, such as working with blood products or processing specimens that may splatter.
Yes. OSHA requires annual fit testing for N95 respirators to ensure a proper face seal. An improperly fitted respirator allows unfiltered air to bypass the filter media. Your EHS department typically coordinates fit testing for lab personnel.
NIOSH guidelines allow limited reuse of N95s if they remain structurally intact, maintain their fit, and are not visibly soiled or contaminated. Many labs follow a single-use policy for biological work. Follow your facility’s specific reuse policy.
No. Surgical masks filter particulates and droplets but do not protect against chemical vapors or gases. For chemical fume protection, use a half-face or full-face respirator with appropriate organic vapor or acid gas cartridges, and always work in a fume hood.
Stocking your lab safety program?
We offer bulk case pricing on masks and respirators. Set up a standing order so you never run out.