The Reusable Respirator with Replaceable Filters features a molded silicone sealing frame, dual bayonet cartridge connection ports, and a low-resistance exhalation valve assembly designed to provide particulate and gas filtration across light to heavy-duty industrial processing environments.
Key Features
Quarter-Turn Bayonet Connector: Provides mechanical locking verification when attaching filter cartridges or particulate discs.
Liquid Silicone Sealing Rim: Maintains shape retention and seal flexibility under high ambient temperature variations and continuous skin contact.
Vertical Downward Exhalation Valve: Directs heat and moisture output downward to reduce facepiece humidity build-up and optical shield fogging.
Four-Point Adjustable Harness: Balance strap tension across the crown of the head to maintain seal uniform pressure without localized points of stress.
Modular Filter Mounting Platform: Accommodates interchangeable gas cartridges, particulate discs, and pre-filter covers on a unified main facepiece.
Design & Components
Facepiece Seal Ring: Molded silicone perimeter engineered to maintain dynamic contact seal during continuous jaw movement.
Cartridge Mounting Bays: High-precision dual bayonet ports formed with rigid internal stops to prevent filter misalignment.
Exhalation Assembly: Center-mounted housing equipped with a thin silicone valve membrane for immediate opening response under low exhalation pressure.
Inhalation Check Valves: Dual internal silicone flaps preventing exhaled moisture from entering the filter media chamber.
Harness Assembly: High-elasticity woven polyester straps fitted with molded polypropylene quick-adjustment buckles.
Technical Specifications
|
Parameter |
Operational Value |
Test Condition / Standard |
|
Device Classification |
Reusable Half-Mask Air-Purifying Respirator |
EN 140:1998 |
|
Primary Sealing Material |
Liquid Silicone Rubber (LSR) |
ISO 10993 Biological Compatibility |
|
Total Inward Leakage Rate |
Less than 1.5% |
EN 140 Section 7.9 |
|
Inhalation Resistance (30 L/min) |
≤ 18 Pa |
Continuous Flow Test |
|
Inhalation Resistance (95 L/min) |
≤ 75 Pa |
Continuous Flow Test |
|
Exhalation Resistance (160 L/min) |
≤ 130 Pa |
Continuous Flow Test |
|
Carbon Dioxide Dead Space |
Less than 0.8% |
Inhaled Air CO2 Content Test |
|
Operating Temperature Range |
-10°C to +55°C |
Thermal Exposure Test |
|
Facepiece Mass (Excluding Filters) |
125 grams |
Scale Measurement |
Applications & Operational Limits
Suited Applications
- Industrial Surface Coating: Filtration of organic paint vapors, solvent mists, and polyurethane spray aerosols.
- Chemical Blending & Handling: Protection during transfer of volatile organic compounds, light acid vapors, and liquid chemical particulates.
- Metal Processing & Fabrication: Retention of metallic fumes, grinding dusts, and cutting debris.
- Pharmaceutical Powder Processing: Containment filtering of solid chemical dusts and dry raw materials.
- Building Construction: Isolation from concrete aggregates, silica dust, and timber cutting dust.
Operational Boundaries
- Ambient oxygen concentration must remain at or above 19.5% by volume.
- Atmospheric contaminant levels must not exceed applicable workplace exposure limits or immediate threat thresholds.
- Equipment is designed strictly for air-purifying filtration and must not be used in oxygen-deficient or emergency escape environments.
Compatible Filters & Consumables
|
Consumable Category |
Classification |
Primary Target Contaminant |
|
Organic Vapor Cartridge |
A1 / A2 Class |
Organic gases and vapors with boiling points exceeding 65°C |
|
Combination Gas Cartridge |
ABEK1 Class |
Multi-gas hazards including organic, inorganic, acid gases, and ammonia |
|
High-Efficiency Particulate Disc |
P3 R / P100 Grade |
Fine solid dusts, water/oil-based mists, and metal fumes |
|
Particulate Pre-Filter Pad |
P2 / N95 Grade |
Coarse particulates to prevent early loading of primary gas cartridges |
|
Filter Retainer Cover |
Molded Snap Cover |
Mechanical clip securing pre-filter pads over gas cartridges |
|
Replacement Silicone Flap |
Valve Membrane Disc |
Maintenance replacement for inhalation and exhalation valve seats |
Use & Maintenance Procedures
Inspection Protocol
1.Examine the silicone sealing rim for physical tears, deformation, or surface contamination.
2.Confirm that inhalation and exhalation valve membranes lie flat against their housing seats.
3.Check elastic strap elasticity and verify buckle lock engagement.
Cleaning & Storage Protocol
1.Remove all attached cartridges, particulate filters, and retainer caps prior to washing.
2.Clean facepiece manually in warm water (below 40°C) using neutral detergent.
3.Air-dry away from direct heat sources and direct UV sunlight.
4.Store in a clean, dry sealable container once completely dry.
Donning & Seal Verification
1.Position facepiece over mouth and nose, secure top harness over head crown, and latch bottom neck strap.
2.Adjust top and bottom straps incrementally to secure uniform seal pressure.
3.Negative Pressure Seal Check: Cover cartridge inlet ports with palms, inhale gently, and confirm mask collapses inward slightly with no perimeter edge air leaks.
4.Positive Pressure Seal Check: Block exhalation port outlet with palm, exhale gently, and verify positive pressure builds internally without edge leakage.
Filter Replacement Criteria
Gas & Vapor Cartridges: Replace immediately upon detecting contaminant smell, taste, or irritation inside the mask.
Particulate Filters: Replace when breathing resistance increases noticeably or filter media shows surface damage.
Quality Certifications
OEM / ODM & Supply Specifications
Customization Capabilities: Custom silicone body color matching, direct laser marking of brand logos, customized carton packaging, and specialized filter kit assemblies.
Minimum Order Quantity: 1,000 units for standard product configurations; 3,000 units for custom color matching or private brand retail packaging.
Standard Export Packaging: 1 unit per sealed bag, 1 bag per inner display box, 20 boxes per outer shipping carton (Carton dimensions: 58 × 38 × 42 cm; Gross Weight: 8.5 kg).
Production Capacity & Lead Time: Daily output capacity of 15,000 units; sample dispatch within 3 to 5 business days; bulk orders (up to 10,000 units) ship within 20 to 25 business days.
Logistics & Delivery Terms: FOB, CIF, or CFR shipping available through Sea Freight, Air Freight, or International Express Courier.
FAQ
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