Moldex 7467 Ammonia Methylamine P100 Combo Cartridge

Moldex 7467 Overview

The Moldex 7467 is a combination ammonia/methylamine cartridge and P100 particulate filter set that delivers simultaneous gas and particle protection on Moldex 7000, 7800, and 9000 series respirators. Each bag contains one cartridge and one filter — order two bags for a complete half-mask or full-face assembly. At $14.80 per set, the 7467 is purpose-built for high-ammonia environments that also generate dust, dander, or biological aerosols: poultry processing lines, fertilizer application, and aquaculture operations are the primary fits.

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Where the Moldex 7467 Fits in Respirator Selection

Ammonia is one of the most common industrial gases, yet it occupies a narrow cartridge chemistry lane: standard organic vapor cartridges provide no ammonia protection, and multi-gas cartridges may be over-specified for single-hazard jobs. The 7467 targets the overlap where ammonia or methylamine vapor co-exists with particulate — a combination that a standalone 7400 ammonia cartridge cannot cover alone.

Particulate filtration class matters in these environments. If you are unsure whether P95 or P100 is appropriate for your exposure, the P95 vs R95 vs P100 filter class guide explains how oil-based aerosols, biological particles, and NIOSH classification interact. For respirator cartridge change intervals, OSHA 1910.134 requires an employer-established change schedule when no end-of-service-life indicator (ESLI) is present — the 7467 has no ESLI, so your facility's written change schedule governs. The respirator cartridge ESLI guide covers how to build a compliant change schedule for ammonia applications.

Workers comparing across brands can reference the best 3M respirator cartridges guide and the 3M vs Honeywell North cartridge comparison before committing to the Moldex platform. Once on Moldex, the full Moldex cartridge and filter collection covers all fifteen available chemistries.

Who Should Buy the Moldex 7467?

What Does the Moldex 7467 Protect Against?

What the Moldex 7467 Does NOT Protect Against

The 7467 cartridge chemistry is formulated exclusively for ammonia and methylamine. The following hazards are outside its protection envelope:

• Organic vapors and solvents (paint thinner, toluene, xylene, MEK) — use the 7367 OV/AG + P100 combo
• Acid gases (hydrogen chloride, sulfur dioxide, chlorine) — not covered by AM chemistry
• Formaldehyde — requires dedicated formaldehyde-rated media
• Mercury vapor — requires specialized mercury-rated cartridge chemistry
• Carbon monoxide and other IDLH-level gases — air-purifying respirators provide no CO protection
• Radioactive particulate or asbestos — verify regulatory requirements; consult your industrial hygienist

Best Applications for the Moldex 7467

Poultry Processing and Live-Bird Housing

Poultry houses generate ammonia continuously from litter decomposition, with concentrations routinely exceeding 25 ppm during grow-out and spiking during cleanouts. Feather dust, dander, and dried fecal aerosols add a P100-class particulate burden. The 7467 addresses both hazards in one assembly, making it the standard choice for house workers, catchers, and growers. Pair with a Moldex 7000 series half-mask for daily wear; step up to the Moldex 9000 full-face respirator during litter cleanouts where ammonia peaks highest.

Anhydrous Ammonia Fertilizer Application

Anhydrous ammonia application equipment — nurse tanks, applicator toolbar, injection shanks — creates exposure risk during hookup, disconnection, and equipment maintenance. Fertilizer applicators working near active injection points or handling hose fittings need ammonia vapor protection combined with soil dust filtration. The 7467 set fits this dual hazard without requiring separate cartridge and filter layers. See the Moldex half-mask respirator collection for compatible facepieces.

Aquaculture and Fish Processing

Ammonia is a byproduct of aquatic animal metabolism and accumulates in enclosed recirculating aquaculture systems (RAS). Workers servicing biofilters, performing tank cleanouts, or processing fish in enclosed facilities face both ammonia vapor and biological particulate from dried organic matter. The 7467 combo set covers this dual exposure on the Moldex platform.

Refrigeration Maintenance — Industrial Ammonia Systems

Cold storage facilities, food processing plants, and ice rinks using ammonia refrigerant (R-717) require maintenance personnel to have respiratory protection during valve work, pipe repair, and leak response. At sub-IDLH leak concentrations, the 7467 provides rated ammonia vapor protection combined with P100 coverage for any corrosion debris or insulation particulate disturbed during work. Review the full Moldex cartridge and filter lineup if your refrigeration maintenance tasks also involve organic vapor from cleaning solvents.

Wastewater Treatment and Biosolids Handling

Digester operations, sludge dewatering, and biosolids land application produce ammonia off-gas alongside fine particulate from dried biosolids. The P100 filter component of the 7467 handles the particulate fraction while the AM cartridge addresses ammonia vapor — a combination that a nuisance-relief-only product cannot provide. The nuisance relief vs. rated respirator protection guide explains why rated cartridges are required here rather than nuisance-level options.

Moldex 7467 Pros and Cons

Compatible Moldex Respirators

The Moldex 7467 does not fit any non-Moldex respirator. It is not compatible with 3M, Honeywell North, MSA, Scott, or any other manufacturer's facepieces. Attempting to force-fit incompatible cartridges creates a seal failure risk that voids NIOSH approval.

Moldex 7467 vs Other Moldex Cartridges

Moldex 7467 vs Moldex 7667: Which Combo Set Is Right for Your Job?

Moldex 7467 Quick Answers

What does the Moldex 7467 protect against?

The Moldex 7467 provides NIOSH-approved protection against ammonia vapor, methylamine vapor, and airborne particulate at P100 efficiency (≥99.97%, including oil-based aerosols). It does not protect against organic vapors, acid gases, or any other chemical class.

How many Moldex 7467 sets do I need for one respirator?

Two sets. Each bag contains one ammonia/methylamine cartridge and one P100 filter. A Moldex half-mask or full-face respirator has two cartridge ports — one on each side — so you need two 7467 sets to complete the assembly.

Does the Moldex 7467 have an ESLI?

No. The 7467 does not include an end-of-service-life indicator. OSHA 1910.134 requires employers to establish a written cartridge change schedule based on objective data — breakthrough calculations, maximum use concentration, or a conservative time-in-service approach — when no ESLI is present.

What respirators is the Moldex 7467 compatible with?

The Moldex 7467 is compatible with the Moldex 7000 series half-mask, Moldex 7800 series half-mask, and Moldex 9000 series full-face respirator. It uses Moldex's bayonet mount and is not compatible with any non-Moldex facepiece.

Can I use the Moldex 7467 in poultry houses?

Yes. The 7467 is one of the primary recommended choices for poultry house workers. Poultry operations generate ammonia from litter decomposition and feather/dander particulate simultaneously — the exact dual hazard the 7467 combo set is designed for. Verify your ammonia concentrations are below IDLH (300 ppm) before relying on any air-purifying respirator.

What is the difference between the Moldex 7467 and the Moldex 7667?

The 7467 covers ammonia and methylamine only ($14.80/set, no ESLI). The 7667 covers organic vapor, acid gas, and ammonia/methylamine in a broader multi-gas cartridge and adds Moldex Smart ESLI for cartridge life indication ($18.50/set). Choose the 7467 for dedicated ammonia/methylamine environments; choose the 7667 for mixed chemical hazards or programs requiring ESLI.

Is the Moldex 7467 NIOSH approved?

Yes. The Moldex 7467 combination set carries NIOSH approval for the ammonia/methylamine cartridge chemistry and P100 particulate filter. NIOSH approval applies only when the cartridge and filter are used on a compatible, NIOSH-approved Moldex respirator facepiece with a successful user seal check performed before each use.

Moldex 7467 Specifications

Helpful Buying Guides

• P95 vs R95 vs P100 Filter Class Guide — understand NIOSH particulate ratings before selecting a filter
• Respirator Cartridge ESLI Guide — how to build a compliant change schedule when no ESLI is present
• Nuisance Relief vs Rated Respirator Protection — when nuisance-level products are insufficient and a rated cartridge is required
• Best 3M Respirator Cartridges — cross-platform comparison if evaluating 3M alternatives
• 3M vs Honeywell North Respirator Cartridges — brand-level comparison across chemistry types
• Best Respirator Cartridge for Mercury Vapor — for facilities with co-existing mercury and ammonia hazards

Moldex 7467 Frequently Asked Questions

Do I need one or two Moldex 7467 sets for a half-mask respirator?

Two. A Moldex half-mask has a bayonet port on each side. Each 7467 bag contains one cartridge and one filter — one set per side. Add two sets to your cart for a complete working assembly.

Will the Moldex 7467 work on a 3M or Honeywell respirator?

No. The 7467 uses Moldex's proprietary bayonet mount. It is not compatible with 3M's bayonet system, Honeywell North's port geometry, or any other manufacturer's facepiece. Using mismatched cartridges and facepieces creates a seal failure and voids NIOSH approval for both components.

What is the cartridge change schedule for the Moldex 7467?

The 7467 has no ESLI (end-of-service-life indicator). OSHA 1910.134(d)(3)(iii)(B)(2) requires employers to establish a change schedule based on objective information — typically a maximum use concentration calculation, a vendor breakthrough service life estimate, or a conservative time-in-service limit. Your EHS or industrial hygiene team must document this schedule in writing as part of your written respiratory protection program.

Can the Moldex 7467 be used with a full-face respirator?

Yes. The 7467 is compatible with the Moldex 9000 series full-face respirator using the same bayonet mount. A full-face respirator also provides eye and face protection from ammonia splash and splash of ammonia-containing liquids — a relevant consideration for fertilizer applicators and refrigeration technicians.

How does the Moldex 7467 compare to the 3M 60924 for ammonia?

Both are NIOSH-approved combination cartridges for ammonia/methylamine plus P100 particulate. The 3M 60924 uses 3M's bayonet system and is compatible only with 3M 6000/7000 series respirators. The Moldex 7467 uses Moldex's bayonet system and is compatible only with Moldex 7000/7800/9000 series respirators. Neither is cross-compatible. Cartridge chemistry performance is comparable at rated concentrations; choose based on which respirator platform you already own.

Is the Moldex 7467 appropriate for anhydrous ammonia fertilizer application?

Yes, for sub-IDLH exposure during equipment maintenance, hookup, and disconnection. Anhydrous ammonia is an IDLH hazard (300 ppm) when lines are under pressure. If your exposure assessment identifies potential concentrations at or above IDLH — for example, during a release event — a supplied-air respirator or SCBA is required. The 7467 is appropriate for routine maintenance exposures below that threshold, per a written change schedule.

Does the Moldex 7467 protect against acid gases or chlorine?

No. The AM chemistry in the 7467 is designed for alkaline gases (ammonia, methylamine). Acid gases including hydrogen chloride, chlorine, sulfur dioxide, and hydrogen fluoride require acid gas-rated media. For acid gas plus particulate protection, use the Moldex 7367 OV/AG + P100 combo cartridge.

Can I reuse a Moldex 7467 set after removing it from the respirator?

The P100 filter portion is physically reusable until it is damaged, soiled, or causes increased breathing resistance. The AM cartridge portion must be changed per your written change schedule — once a cartridge is used in an ammonia environment, the activated media begins to saturate. Never reinstall a cartridge that has reached its change-out interval, even if you detect no odor; ammonia odor threshold is unreliable as a breakthrough indicator.

What is the Moldex 7407, and how does it relate to the 7467?

The Moldex 7407 is the standalone ammonia/methylamine cartridge sold individually at $4.00. The 7467 is that same cartridge chemistry packaged together with a P100 filter as a matched set. If your hazard is ammonia vapor only with no particulate concern, the 7407 cartridge alone (used with a separate P100 filter or without) is the lower-cost option.

Where can I buy a Moldex 7000 series respirator to pair with the 7467?

The Moldex 7000 series half-mask respirator is available on WC Safety. It comes in small (7001), medium (7002), and large (7003) sizes. A proper fit test is required before first use under OSHA 1910.134.

Does the Moldex 7467 protect against bioaerosols in poultry houses?

The P100 filter component of the 7467 provides ≥99.97% filtration efficiency, which is effective against biological aerosols including endotoxin-carrying particles, fungal spores, and aerosolized bacteria common in poultry environments. The cartridge component addresses the ammonia vapor fraction. Together, the set addresses both primary respiratory hazard categories in poultry housing.

What should I do if I smell ammonia while wearing the Moldex 7467?

Exit the area immediately. Ammonia odor detected through a fitted, sealed respirator indicates cartridge breakthrough — the AM media is saturated. Replace both 7467 sets before re-entry. Review your change schedule; if breakthrough occurred before your scheduled interval, reduce the change-out period. Ammonia has a strong odor threshold warning, which is one of the few gases where smell can serve as a practical (though not sole) breakthrough indicator — but do not rely on smell as your primary change trigger.