Gerson 1740 N95 Particulate Respirator with Exhalation Valve – Molded Cup, Made in USA (Box of 10)

The Gerson 1740 N95 Particulate Respirator adds a premium oversized exhalation valve to the proven molded cup platform of the 1730, addressing the primary limitation of unvalved N95 designs: heat and humidity buildup during extended wear. NIOSH approved for ≥95% filtration efficiency, the 1740 is manufactured in Gerson's Middleboro, MA facility and packaged 10 per box for professional and industrial procurement.

Construction and Materials

The 1740 uses Gerson's double-shell molded cup construction. Electrostatically charged filter media reduces inhalation resistance while maintaining filtration performance. The oversized exhalation valve is engineered to open more easily than standard valve designs, expelling warm exhaled air quickly and keeping the interior of the mask cooler and drier. A soft foam nose cushion and contoured adjustable nose clip provide a fitted seal. Head straps are latex-free smooth polymer, staple-free construction throughout.

Compliance and Ratings

NIOSH approved for ≥95% filtration efficiency against non-oil-based airborne particles per 42 CFR Part 84. The exhalation valve expels unfiltered exhaled air, which means the 1740 is not appropriate for surgical environments where source control (protecting the patient from the wearer) is required. Meets OSHA 29 CFR 1910.134 requirements for industrial and general industry applications.

Performance

The oversized valve's lower opening resistance is the defining performance advantage of the 1740 over the unvalved 1730. In warm workplaces — foundries, industrial kitchens, outdoor summer construction — the valve reduces moisture accumulation inside the mask, which extends comfort and maintains filter integrity over a longer wear period. Inhalation resistance is further reduced by the electrostatically charged media, which requires less mechanical pressure to push air through than uncharged fiber filter media.

Strengths

• Oversized exhalation valve reduces heat and humidity buildup during extended wear
• Electrostatically charged filter media lowers inhalation resistance
• Double-shell collapse-resistant construction maintains structural integrity
• Latex-free polymer straps — no pre-stretching required
• Made in USA — Gerson's ISO 9001:2015 certified facility

Limitations

• Exhalation valve passes unfiltered exhaled air — not suitable for surgical or source-control applications
• N-series rating only — not effective for oil mist, metalworking fluids, or aerosol sprays
• Box of 10 format has a higher per-unit cost than full case purchasing

Recommended Use Cases

The 1740 is most appropriate for industrial environments where heat and exertion are factors: construction, manufacturing, warehousing, utilities, and outdoor work in warm climates. It is the preferred choice when workers in an N95 program cite comfort complaints with unvalved designs, as the valve directly addresses the heat and humidity issues that drive non-compliance.

Verdict

The Gerson 1740 resolves the primary wearer comfort complaint of N95 programs — heat buildup — without sacrificing NIOSH-certified filtration. For industrial applications where source control is not required, it is the practical upgrade over the unvalved Gerson 1730. Healthcare environments requiring source control must remain on unvalved designs.

FAQ

Why does the Gerson 1740 have an exhalation valve if it is an N95?

The exhalation valve improves wearer comfort by releasing warm, humid exhaled air without passing it through the filter. This does not reduce inhalation protection. However, it means the wearer's exhaled breath is unfiltered — making valved N95s unsuitable for surgical environments or environments where source control is required.

Is the Gerson 1740 made in the USA?

Yes. The 1740 is manufactured at Gerson's Middleboro, Massachusetts facility, which operates under ISO 9001:2015 certification.

How does the 1740 differ from the 1730?

The 1740 adds a premium oversized exhalation valve to the 1730's molded cup platform. This improves comfort during extended wear in warm conditions but makes it unsuitable for surgical or source-control applications where the 1730 (unvalved) is appropriate.

What is the box and case quantity for the Gerson 1740?

Each box contains 10 respirators. A standard case contains 10 boxes (100 units total).

Can the Gerson 1740 be used for welding fumes?

The 1740 filters ≥95% of non-oil-based particulates and provides protection against welding fumes classified as particulate matter. However, welding operations that produce significant oil mist or aerosols from cutting fluids require an R95 or P100 rated respirator. Evaluate the specific welding process before specifying.