O2 Armor Nose Filters for Welders & Allergies – Dust Nasal Filter (10 Pack, Medium)

O2 Armor Nose Filters are small vented filters that sit just inside the nostrils, giving a discreet filtration layer for dusty and smoky work where a full mask is impractical or gets in the way. This pack contains 10 filters in size Medium.

What they filter

O2 Armor rates them at up to 99% capture for dust, smoke, pollen, pet dander, lead dust and sawdust, with stated efficiency at both 10 and 2.5 micron particle sizes. For reference, 10-micron particles are coarse dust such as sawdust and pollen, and 2.5-micron particles are the much finer fraction found in smoke.

Why a nose filter

Because nothing covers the mouth or face, you can talk clearly to the crew, and the filters fit under a welding helmet or beside a face shield without interfering with the seal or the view. Facial hair is not a problem the way it is with a mask that must seal against the skin. They are low-profile enough to wear through a long shift.

The vented design keeps breathing comfortable and speech clear. The filters are made without latex and contain no drugs, and they are used in welding, woodworking, housekeeping, landscaping and mechanical work.

Getting the size right

Fit matters for a filter that sits in the nose: too small and air goes around it, too large and it is uncomfortable. The filters come in four sizes, and O2 Armor offers a Sample Pack with all four so you can confirm your fit before settling on a 10-pack of one size.

Good to know: nose filters work only on air breathed through the nose. Where your job or site rules call for a respirator, wear the specified respirator.