3M Versaflo TR-6320N Acid Gas/HE Cartridge for TR-600/TR-800

The 3M Versaflo TR-6320N Acid Gas/HE Cartridge is a single replacement cartridge for the 3M Versaflo TR-600 and TR-800 PAPR systems — providing High Efficiency (HE) 99.97% minimum particulate filtration alongside specific chemical protection against acid gases in a single cartridge for operations with inorganic acid gas exposures alongside airborne particulate hazards. Acid gas protection addresses the class of inorganic corrosive gases including hydrogen chloride (HCl), chlorine (Cl₂), sulfur dioxide (SO₂), hydrogen fluoride (HF), and hydrogen sulfide (H₂S) — gases generated in chemical manufacturing, semiconductor fabrication, metal surface treatment, pulp and paper bleaching, water and wastewater treatment chemical handling, and industrial maintenance operations where acid gas releases occur alongside particulate exposures. The TR-6320N is sold as a single cartridge, appropriate for programs that need replacement unit supply at a per-cartridge quantity — where the change schedule interval or the number of equipped workers makes 5-pack procurement the appropriate supply format for some programs and single-unit procurement the right format for others. The acid gas sorbent in the TR-6320N uses activated carbon impregnated or treated to provide enhanced adsorptive capacity for inorganic acid gases, which differ in chemistry from the organic vapors addressed by OV-rated carbon — ensuring that the specific corrosive gas hazards present in acid gas operations receive appropriate cartridge-based protection.

3M Versaflo TR-6320N Acid Gas/HE Cartridge — Key Features

An air-purifying respirator filters air, it does not supply any. Under 29 CFR 1910.134 no air-purifying respirator may be worn in an atmosphere that is IDLH or oxygen-deficient (below 19.5% oxygen). Those conditions require a supplied-air respirator or an SCBA, and no filter or cartridge rating changes that.

• Acid gas protection — specifically rated activated carbon for inorganic acid gases including HCl, Cl₂, SO₂, HF, H₂S
• HE particulate filtration — 99.97% minimum efficiency for combined acid gas and particulate environments
• Compatible with TR-600 and TR-800 PAPR systems
• Single cartridge — flexible procurement quantity for programs with per-unit change needs
• Appropriate for acid gas operations where OV cartridges are not rated

Specifications

Acid Gas PAPR Protection: Chemical Scope and Cartridge Selection

Acid gas cartridges address a specific class of hazardous gases — the inorganic corrosive acids that are generated or handled in industrial chemical processes. Hydrogen chloride (HCl) is produced during PVC and chlorinated compound combustion, acid cleaning and pickling operations, and chemical synthesis involving chlorine compounds. Chlorine (Cl₂) is used in water treatment and pulp and paper bleaching, and is generated as a byproduct in several industrial chemical processes. Sulfur dioxide (SO₂) is generated in combustion of sulfur-containing fuels and in smelting operations. Hydrogen fluoride (HF) is used in semiconductor etching, aluminum processing, and petroleum alkylation. Hydrogen sulfide (H₂S) is generated in petrochemical processing, wastewater treatment, and wherever organic matter decomposes anaerobically. Standard organic vapor activated carbon cartridges are not rated for these inorganic acid gases — the carbon formulation optimized for organic solvent adsorption does not provide adequate protection against the lower-molecular-weight inorganic acid gases, which require a specifically formulated or impregnated sorbent to achieve appropriate service life and breakthrough performance. The TR-6320N's acid gas-rated sorbent provides the protection that these specific inorganic chemical hazards require, combined with HE particulate filtration for the dust and aerosol exposures that accompany many acid gas operations.

Compliance and Certifications

• NIOSH — HE particulate filtration for NIOSH-approved 3M Versaflo TR-600/TR-800 PAPR
• OSHA 29 CFR 1910.134 — respiratory protection standard; written program and cartridge change schedule required for mandatory PAPR use

Real-World Benefits

Acid gas-rated sorbent provides appropriate protection against inorganic corrosive gases that OV cartridges are not rated to address. Water treatment operators, chemical plant workers, and semiconductor fabrication maintenance personnel with documented acid gas exposures receive the cartridge protection that is correctly rated for their specific inorganic chemical hazard — not organic vapor carbon that does not provide equivalent protection against HCl, Cl₂, SO₂, or HF.

Single-cartridge procurement format provides flexibility for programs with varied change schedule intervals and worker counts. Safety programs that require acid gas PAPR cartridge replacement on a per-unit or per-worker basis can procure the TR-6320N in the single format that matches actual consumption without overstocking in the 5-pack format when single-unit quantities better fit the program's change schedule and worker population.

Applications and Use Cases

• Water and wastewater treatment — chlorine and chloramination systems — TR-6320N for treatment plant operators and maintenance workers with chlorine and chloramine gas exposure during chemical handling and system maintenance
• Chemical manufacturing with acid gas generation — acid gas/HE PAPR protection for workers in HCl, SO₂, and HF-generating process environments in chemical production and metal surface treatment
• Semiconductor and electronics fabrication — etching and cleaning operations — PAPR acid gas cartridge for maintenance and operations personnel with HF and HCl exposure in semiconductor fabrication and electronics cleaning operations

Related Products

For acid gas/HE cartridge in 5-pack format, see the TR-6320N-5 if available. For OV/Acid Gas combined protection, see 3M Versaflo TR-6530N OV/Acid Gas/HE Cartridge — 5-Pack. For multi-gas broad-spectrum protection, see 3M Versaflo TR-6590N Multi-Gas/HE Cartridge. Browse the complete Respiratory Protection collection.

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Written by Steven Eaton, WC Safety editor. WC Safety is an independent PPE review site, holds no inventory and sells nothing directly; Amazon links are affiliate links that earn a commission at no cost to you and never affect the assessment. This page is not medical, legal or regulatory advice.

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