GVS Elipse P100 Half Mask Respirator: Full Review

This image is a team-edited illustrative concept. View official product on Amazon (Subject to availability) →

← All Posts shop equipment Weld Gear Team Last updated on July 19, 2026

Most welders who start caring about fume protection do it after reading something alarming, or after a friend gets bad news. Then they go looking for a respirator that actually fits under a welding helmet, doesn’t turn every work session into a claustrophobic ordeal, and filters the fumes that come off steel, stainless, and flux-core wire. The GVS Elipse P100 is the one that keeps coming up, and after spending real time with it, the reputation is earned.

The GVS Elipse P100 is a reusable half-mask respirator that uses NIOSH-approved P100-rated replaceable filters. It is designed to fit the contours of the face with a low-profile, oval-shaped facepiece that sits significantly closer to the face than traditional cup-shaped respirators. That low profile is what makes it compatible with welding helmets where a bulkier mask would break the seal or press into the helmet’s inner edge.

For most welders doing MIG, flux-core, stick, or TIG work on carbon and stainless steel, the GVS Elipse P100 in the M/L size (model SPR457, ASIN B013SIIBFQ) is the clearest recommendation in this price tier. It is NIOSH-approved to P100 standards, filters 99.97 percent of airborne particulates including metal fume, and fits a wider range of face shapes than any other half-mask respirator I’ve tested at this price. If you have a smaller face, the S/M sizing is available in a separate ASIN.

What P100 Protection Actually Means for Welding

NIOSH (the National Institute for Occupational Safety and Health) rates respirator filters on a two-axis scale: the letter indicates oil resistance (N for not resistant, R for resistant, P for oil-proof) and the number indicates filtration efficiency percentage (95, 99, or 100). A P100 filter filters at least 99.97 percent of airborne particles and is resistant to oil-based aerosols.

For welding, the relevant hazards are metal particulates, metal fumes (vaporized metal that condenses into very fine particles), and flux fumes. All of these are particulate hazards that P100 filtration addresses. OSHA 29 CFR 1910.134 establishes the respiratory protection framework, and NIOSH approval is the standard by which filter effectiveness is certified. The P100 filter on the GVS Elipse meets that standard with a minimum 99.97 percent efficiency, which gives it an assigned protection factor (APF) of 10 for half-mask use.

Note: P100 filters handle particulate and fume hazards but do not protect against gaseous hazards such as ozone from TIG welding on aluminum or solvent vapors. For those applications, you need a combination filter that includes an organic vapor or acid gas cartridge. The base Elipse P100 is a particulate-only filter.

The Design That Makes It Different

The Elipse profile is genuinely unusual. Where most half-masks have a dome or cup shape that sits well away from the face and leaves a gap under a welding helmet, the Elipse’s flat-oval facepiece sits close. The thermoplastic elastomer (TPE) facepiece is flexible, lightweight (the mask weighs around 130 grams without filters), and contours to the face under light pressure rather than relying entirely on a rigid frame for the seal.

The exhalation valve is positioned on the front face, not the bottom, which keeps exhaled air from fogging a flip-up welding lens during close work. The filter cartridges click in from either side of the facepiece and are covered by small plastic caps when stored. Replacement is a two-second operation.

The mask comes in two sizes: S/M for smaller faces and M/L for the majority of adult face sizes. Getting the size right matters more on the Elipse than on bulkier cup-style masks because the low-profile fit depends on the seal edge sitting correctly on the cheekbone and jaw line. When it fits, it seals. When it’s the wrong size, you’ll know immediately.

Performance Under a Welding Helmet

This is where the Elipse earns its reputation. Under an auto-darkening helmet with a standard interior depth, the Elipse fits without pressing into the helmet shell on either side. A larger cup-style 3M mask or a Miller LPR-100 (itself a low-profile design) will work under some helmets and not others. The Elipse fits under a wider range because it sits closer to the face by design.

Breathing resistance at rest is low. Extended MIG sessions with the mask seated correctly produce less fatigue than comparable half-masks with thicker filter cartridges. The exhalation valve operates with minimal cracking pressure, which matters on a full shift more than a 20-minute test in a parking lot.

Named Flaw

The head straps are the weak link. They are thin elastic bands attached to small plastic buckles, and both the elastic and the buckle material are less robust than the facepiece itself. Over extended daily use, the elastic loses some tension before the facepiece shows any wear. The replacement strap kit is available and inexpensive, but it is an additional purchase most users don’t expect. If you’re using this mask daily in a production welding environment, budget for replacement straps every few months.

A secondary flaw: the filter replacement caps are small plastic pieces that are easy to misplace. GVS sells replacement caps, but the original set is the only one in the box. Small problem, but worth knowing if you’re working in an environment where small parts go missing.

Size Options

The Elipse P100 comes in two configurations:

S/M (SPR451): For smaller adult face sizes. Fits roughly the lower third of the adult face size distribution.
M/L (SPR457, ASIN B013SIIBFQ): For the majority of adult face sizes. This is the starting point for most buyers.

GVS provides a paper sizing guide on their site. The correct approach is to measure the vertical face dimension from the bridge of the nose to the bottom of the chin. The S/M covers 98 to 114mm; the M/L covers 114mm and above. If you’re borderline, size up.

How to Replace the Filters

Filter replacement on the Elipse is straightforward. The filter cartridges on each side of the facepiece pull off with a quarter-turn counterclockwise and push on with a quarter-turn clockwise. New P100 filters for the Elipse are the GVS FIL001 series, available separately on Amazon. The filters are color-coded magenta (P100 standard color per NIOSH). GVS also makes combination OV/P100 filters for the same facepiece if you need organic vapor protection in addition to particulate filtration.

Change filters when breathing resistance increases noticeably, when the filter is physically damaged, or when a filter has been used in an environment with heavy contamination such as lead fume or hexavalent chromium from stainless steel welding. There is no fixed change interval in hours; real-world change frequency depends on fume concentration and session length.

Comparison: Elipse P100 vs. Alternatives

Against a traditional cup-style half-mask: the Elipse fits more welding helmets, is lighter, and has lower breathing resistance. It gives up nothing on filtration efficiency.

Against the Miller LPR-100: the LPR-100 is explicitly designed for welding helmet compatibility and has its own low-profile geometry. The Elipse is lighter and has a more adaptable facepiece material. The LPR-100 tends to fit better on wider jaw lines. Both are credible choices; the Elipse has an advantage in overall face shape adaptability.

Against the Klein Tools 60552: a close comparison, discussed separately in the Klein 60552 review. Short version: they are functionally very similar products, and there is credible community evidence that they share the same underlying GVS-manufactured platform.

FAQ

Is the GVS Elipse P100 good for welding fumes? Yes. The P100 filter filters 99.97 percent of airborne particulates including metal fumes from MIG, TIG, stick, and flux-core welding. It is NIOSH-approved and meets OSHA 29 CFR 1910.134 requirements for particulate respiratory protection in welding applications. It does not protect against gaseous hazards; for those you need a combination filter with organic vapor or acid gas cartridges.

What size options does the GVS Elipse P100 come in? Two sizes: S/M (SPR451) for smaller adult faces and M/L (SPR457, ASIN B013SIIBFQ) for the majority of adult face sizes. GVS provides a measurement guide based on the vertical face dimension from nose bridge to chin. When in doubt, size up.

How do I replace the filters on the GVS Elipse? The filter cartridges are removed with a quarter-turn counterclockwise and attached with a quarter-turn clockwise. Replacement filters are GVS FIL001 series, available on Amazon. Change filters when breathing resistance increases noticeably or after exposure to high-concentration fume environments.

Does the GVS Elipse P100 fit under a welding helmet? Yes. The low-profile facepiece design is one of the Elipse’s primary advantages over cup-style half-masks. It fits under most standard auto-darkening welding helmets without pressing into the helmet shell or breaking the facepiece seal. Wide-brim fixed-shade helmets with a shallow interior depth may be tight; try before committing if possible.

What is the difference between the GVS Elipse P100 and the OV/P100 version? The base P100 model (SPR457) filters particulates only. The OV/P100 version (SPR473) adds organic vapor and acid gas filtration for applications involving solvent fumes, paint, or certain welding environments with gaseous hazards. For most steel MIG and flux-core welding, the P100-only version is sufficient.

How long do the filters last? There is no fixed service life in hours. Replace filters when breathing resistance increases noticeably, when the filter exterior is visually contaminated or damaged, or after work in environments with heavy metallic fume loads such as galvanized steel, stainless, or cadmium-containing alloys. In typical home-shop use with good ventilation, P100 particulate filters last considerably longer than in high-production environments.

References

URL slug: gvs-elipse-p100-half-mask-respirator-review Excerpt: The GVS Elipse P100 (SPR457) is a NIOSH-approved P100 half-mask respirator with a low-profile facepiece that fits under most welding helmets. This review covers its performance for welding fume protection, sizing, filter replacement, and the one component that wears out before everything else.