3M Secure Click D9093C P100 Hydrogen Fluoride Filter, Hard Case — Nuisance OV/AG Relief

3M Secure Click D9093C P100 Hydrogen Fluoride Filter overview

The 3M Secure Click D9093C P100 Hydrogen Fluoride Filter is a P100 particulate filter (at least 99.97% oil/non-oil efficiency) in a rigid polycarbonate hard case, built with hydrogen-fluoride-resistant filter media and nuisance-level organic vapor/acid gas (OV/AG) relief. It mounts via 3M's audible Secure Click push-and-lock connection, fitting only the Secure Click HF-800 half facepiece and FF-800 full facepiece — not any 3M bayonet respirator. See our how to choose a respirator cartridge guide and the P100 respirator filters collection for the rest of the lineup.

One clarification worth making directly: "hydrogen fluoride" in this filter's name does not mean it protects you against hazardous HF exposure. Per 3M's own product specification, the HF reference describes the filter media's resistance to degradation from hydrogen fluoride, combined with nuisance-level relief for organic vapor and acid gas — meaningful only when those concentrations are already below the OSHA Permissible Exposure Limit (PEL). It is not certified protection against HF gas or aerosol at or above the PEL. If your air monitoring shows HF at or above the PEL, 3M specifies a proper acid-gas cartridge such as the Secure Click D8003 instead — this filter is not a substitute. For plain P100 particulate protection without the HF-resistant media, the base D9093 covers the same particulate class at a lower cost.

Where it fits

It's built for jobs needing hard-case P100 particulate protection — dust, fume, mist, oil aerosols, and general welding fume — in environments where filter media durability against hydrogen fluoride exposure to the filter itself matters, plus some odor relief from organic vapor and acid gas below the PEL. It's not the specified equipment for confirmed HF gas or aerosol exposure at hazardous levels — that calls for a proper acid-gas cartridge like the D8003, selected with a qualified industrial hygienist. For silica or other high-hazard particulates without the HF/nuisance feature, the D9093 or best respirator for silica dust guide covers that ground, and our respirator filter types explained guide covers the N/R/P efficiency classes if you're comparing options.

Pros & cons

Specifications

Related guides

• How to choose a respirator cartridge
• P100 vs N95
• Respirator filter types explained
• 3M D9093 vs D9093C
• Best respirator for silica dust

Related resources

• 3M Secure Click D9093 (plain P100 hard case)
• 3M Secure Click D9093CB (nuisance acid gas)
• 3M Secure Click D8003 (organic vapor/acid gas cartridge)
• 3M Secure Click D3076HF (P95, soft shell)
• Shop 3M half mask respirators
• Shop 3M full face respirators

Frequently asked questions

Does the D9093C protect against hydrogen fluoride gas or aerosol?

Not at hazardous levels. 3M's own product specification describes the "hydrogen fluoride" feature as filter media that resists degradation from HF, combined with nuisance-level (below the OSHA PEL) organic vapor/acid gas relief — not certified protection against HF gas or aerosol at or above the PEL. If your air monitoring shows HF at or above the PEL, 3M specifies a proper acid-gas cartridge like the Secure Click D8003 instead.

What does "nuisance level" OV/AG relief actually mean?

It means the filter provides some odor/irritation relief from organic vapor and acid gas only when concentrations are already below the OSHA Permissible Exposure Limit — it's a comfort feature, not a certified protection rating for those gases at hazardous concentrations. Don't rely on it as your gas protection if OV or acid gas exposure could reach or exceed the PEL.

What respirators does the D9093C fit?

3M Secure Click HF-800 (half facepiece) and FF-800 (full facepiece) respirators only, via the audible push-and-lock Secure Click connection. It does not fit any 3M bayonet respirator, including the 6000, 6500QL, 7500, 7800S, or FF-400 series — those use a completely different, incompatible mount.

How efficient is the particulate filtration?

P100 — at least 99.97% of oil and non-oil airborne particles, the highest NIOSH particulate filter class, using 3M's Advanced Electret Media for easier breathing.

Why choose the hard case over a soft-shell filter?

The rigid polycarbonate housing resists crushing, puncturing, and surface contamination better than a soft-shell filter, which matters in tool-dense or harsh environments where filters get knocked around or need easy decontamination.

What's the difference between the D9093C and the D9093?

The base D9093 is a plain P100 hard-case filter with no HF-resistant media or nuisance-level relief claim. The D9093C adds HF-resistant filter media and nuisance-level OV/AG relief on top of the same P100 particulate performance — if you don't need that added feature, the D9093 covers the same particulate class at a lower cost.

What's the difference between the D9093C and the D9093CB?

Both are P100 hard-case filters with nuisance-level relief, but the D9093CB is 3M's standard nuisance acid gas relief filter without the HF-resistant media designation, while the D9093C specifically adds hydrogen-fluoride-resistant construction. Neither is a substitute for a proper gas cartridge if your acid gas or HF exposure could reach the PEL.

What should I use for actual hydrogen fluoride exposure protection?

A Secure Click acid-gas cartridge rated for the hazard, such as the D8003 (organic vapor and acid gas cartridge) — confirm the exact rating against your air monitoring data and a qualified industrial hygienist's assessment. This filter is not the specified equipment for HF exposure at or above the PEL.

Does it protect against silica dust or welding fume?

Yes, for particulate hazards — P100 is the filter class commonly specified for crystalline silica, lead, and other high-hazard respirable particulates, and it works for general welding fume too. The HF-resistant media and nuisance relief don't reduce its particulate performance, but they also don't make it a gas-hazard solution.

How often should I replace the D9093C?

Replace it when damaged, soiled, or breathing resistance increases noticeably, or per your employer's written change-out schedule. A particulate filter has no reliable odor or taste indicator, so don't wait for a warning sign — follow a time- or condition-based schedule.

Is the D9093C sold as a single filter or a pair?

Sold as a pair — two filters per package, one for each side of the Secure Click respirator.

Can this be used on both half-face and full-face Secure Click respirators?

Yes. The Secure Click push-and-lock mount is identical on the HF-800 half facepiece and FF-800 full facepiece, so the D9093C fits either platform.

Reviewed by Steven Eaton, WC Safety. Specifications reflect 3M's published data for the D9093C: HF-resistant filter media plus nuisance-level (below-PEL) organic vapor/acid gas relief, not certified hazard-level hydrogen fluoride protection — for HF exposure at or above the PEL, use a proper acid-gas cartridge per your respiratory protection program.