Description

Technical Parameters

The Air-Purifying Respirator with Replaceable Filters is a reusable half mask respirator consisting of an elastomeric facepiece, dual bayonet filter connectors, silicone inhalation and exhalation valves, and a four-point adjustable head harness, designed to protect industrial workers from airborne particulate contaminants, organic vapors, and acid gases through replaceable filter elements.

Key Features

01/

Dual Bayonet Interface
Standardized twist-lock connection allows fast, tool-free filter replacement.

02/

Ergonomic Silicone / TPE Seal
Flexible facial flange conforms to diverse facial profiles to maintain consistent seal integrity.

03/

Downward Exhalation Port
Directs expelled breath downward to reduce internal heat and moisture buildup.

04/

4-Point Head Harness
Adjustable woven elastic straps distribute mask weight evenly across the crown.

05/

Modular Cartridge Compatibility
Accepts interchangeable particulate cottons, chemical gas cartridges, or combined filters.

Design & Components

Facepiece Body: Injection-molded thermoplastic elastomer or liquid silicone rubber. Resists skin oils and maintains flexibility across operational temperature ranges from -10°C to +50°C.

Valve Assemblies: Precision-molded silicone diaphragms. Respond instantly to pressure differentials to prevent air backflow and minimize inhalation/exhalation resistance.

Connection Ports: Twin bayonet locking receptacles. Form a secure physical seal with matching filter cartridges.

Head Suspension: Braided elastic straps equipped with quick-release sliding buckles for rapid donning and removal.

Cartridge Housing: Rigid polymer shell enclosing activated carbon beds and electrostatic meltblown filter media layers.

Technical Specifications

Parameter	Specification Standard
Product Category	Reusable Half Mask Respirator
Facepiece Material	Liquid Silicone / Thermoplastic Elastomer (TPE)
Total Inward Leakage	< 2% (EN 140 Test Standard)
Inhalation Resistance (30 L/min)	≤ 0.5 mbar
Inhalation Resistance (95 L/min)	≤ 1.3 mbar
Exhalation Resistance (160 L/min)	≤ 2.0 mbar
Operating Temperature	-10°C to +50°C
Net Weight (Facepiece)	125 grams (excluding filter cartridges)

Applications & Limitations

Applications

Metal grinding, surface cutting, sanding, and welding operations requiring particulate defense.
Industrial spray painting, solvent wiping, and chemical mixing tasks.
Construction masonry, concrete cutting, and woodworking dust control.
Pharmaceutical material handling and laboratory processing environments.

Limitations

Do not use in atmospheres containing less than 19.5% oxygen concentration.
Do not use in Immediately Dangerous to Life or Health (IDLH) environments.
Do not use against unknown airborne hazards or concentrations exceeding maximum use limits.

Compatible Filters & Accessories

Accessory Type	Compatible Element / Component
Particulate Pre-Filter	P2 / P3 Grade non-woven cotton for dust, mist, and fumes
Gas Cartridge	Activated carbon canister for organic vapors and acid gases
Combined Filter	Integrated housing for simultaneous particulate and gas protection
Filter Retainer Cover	Snap-on cap securing pre-filter cotton over gas cartridges
Valve Replacement Kit	Spare silicone inhalation and exhalation diaphragms

Use & Maintenance

Pre-Wear Inspection: Inspect the elastomeric facepiece, head straps, and valve flaps for cracks, tears, deformation, or hardening prior to each use.

Filter Replacement: Replace particulate filters when breathing resistance increases noticeably. Replace chemical cartridges immediately if contaminant odor or taste is detected.

Cleaning Procedure: Detach all filters and valve diaphragms. Wash the facepiece body in warm water below 40°C using a mild neutral detergent. Air dry in a clean area.

Storage Guidelines: Store cleaned respirators in sealed containers away from direct sunlight, high humidity, chemicals, and extreme temperatures.

Our Certificate

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OEM/ODM & Supply Information

Commercial Parameter	Operational Detail
Customization Services	Custom logo pad printing, harness color matching, branded retail box design
Minimum Order Quantity	1,000 sets for standard production; 3,000 sets for custom OEM configuration
Standard Packaging	1 set per inner box, 20 boxes per master carton
Master Carton Dimensions	54 cm × 38 cm × 28 cm
Production Lead Time	15–20 days for standard orders; 25–35 days for customized OEM orders
Monthly Production Capacity	150,000 respirator units; 500,000 filter cartridge sets

FAQ

Q: How frequently must the replaceable filter elements be changed?

A: Particulate filters should be replaced when breathing resistance increases due to dust accumulation. Chemical cartridges must be replaced immediately upon breakthrough (when the user detects odor, taste, or irritation) or according to a facility replacement schedule.

Q: Can the filter cartridges or particulate cotton be washed with water?

A: No. Filter cartridges and particulate cotton must never be washed. Moisture ruins the electrostatic charge of meltblown fibers and ruins the porous structure of activated carbon. Clean only the disassembled elastomeric facepiece body.

Q: Are the bayonet connections compatible with standard market filters?

A: Yes. The bayonet locking geometry follows standardized interface dimensions, ensuring secure twist-lock compatibility with standard matching bayonet cartridges.

Q: What customization options are supported for private label orders?

A: Customization includes pad-printed logos on the front cover or strap buckle, custom harness strap colors, multi-language user manuals, and customized master carton dimensions.

Q: What is the storage shelf life of the respirator and filter elements?

A: Unopened facepieces and filter cartridges kept in original sealed packaging maintain a shelf life of 5 years from the manufacturing date under recommended storage conditions.

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