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NRR vs SNR: What Safety Buyers Need to Know

Posted by ASA, LLC on Aug 21st 2026

NRR vs SNR: What Safety Buyers Need to Know

NRR and SNR are laboratory-derived, single-number ratings for hearing protectors. NRR appears on hearing-protector packaging in the United States under EPA labeling rules. SNR appears in a separate me …

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Respirator Cartridge and Filter Selection Basics

Posted by ASA, LLC on Aug 20th 2026

Respirator Cartridge and Filter Selection Basics

Select a respirator filter or cartridge by matching four records: the identified airborne hazard, the required protection level, the exact facepiece model, and the manufacturer's NIOSH-approved confi …

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How to Specify Cold Storage PPE for Freezer Work

Posted by ASA, LLC on Aug 12th 2026

How to Specify Cold Storage PPE for Freezer Work

A worker moving from a 70°F loading area into a freezer can lose dexterity, visibility, and control faster than many PPE programs account for. The right cold storage PPE system protects against co …

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