The Single-Filter Air-Purifying Respirator is a reusable half-mask facepiece utilizing a single bayonet-mount filter port to protect operators in hazardous industrial environments. Engineered with a balanced central intake pathway, this respirator directs incoming airflow through a single replaceable cartridge while maintaining a low-profile field of vision compatible with safety eyewear and protective face shields.
Key Features
Single-Port Bayonet Interface: Standardized twist-lock connection accommodates compatible gas cartridges and particulate filters securely.
Ergonomic Sealing Edge: Contoured elastomeric flange adapts to diverse facial profiles to maintain a consistent seal during movement.
Low-Resistance Exhalation Valve: Large-surface flapper valve opens rapidly under minimal pressure to exhaust heat and moisture.
Four-Point Head Harness: Adjustable polyester straps distribute tension evenly across the crown to prevent pressure points.
Unobstructed Downward Vision: Narrow front profile allows a wide visual field for inspection and precision tasks.
Design & Components
Molded from dermatologically tested, flexible silicone or medical-grade TPE, resistant to skin oils and industrial chemicals.
Integrated hard-plastic bayonet mount featuring a rubber sealing gasket for airtight filter attachment.
Removable protective cover housing a flexible silicone valve diaphragm for unidirectional exhaust.
Rigid thermoplastic crown piece anchoring four adjustable elastic straps via quick-release buckles.
Technical Specifications
|
Parameter |
Specification Value |
Testing Standard / Method |
|
Product Type |
Reusable Half Mask (Single Filter Port) |
EN 140:1998 |
|
Facepiece Material |
Silicone / Medical-Grade TPE |
ISO 10993 Biocompatibility |
|
Connection Standard |
Bayonet Twist-Lock Interface |
EN 140 / EN 14387 |
|
Inhalation Resistance |
≤ 30 Pa at 30 L/min; ≤ 100 Pa at 95 L/min |
EN 140:1998 Clause 6.8 |
|
Exhalation Resistance |
≤ 50 Pa at 160 L/min |
EN 140:1998 Clause 6.8 |
|
Total Inward Leakage |
< 2% |
EN 140 Fit Test Protocol |
|
Unit Weight |
115 g ± 5 g (excluding filter) |
Laboratory Scale Measurement |
|
Operating Temperature |
-10°C to +55°C |
Thermal Pre-conditioning |
|
Storage Shelf Life |
5 Years (Factory Sealed Packaging) |
Accelerated Aging Test |
Applications & Limitations
Recommended Applications
Surface Grinding & Metal Fabrication: Captures metallic dust, silica particles, and welding fumes.
Industrial Painting & Coating: Filters organic solvents, paint mists, and volatile vapors when paired with correct cartridges.
Chemical Handling: Protects against specific gas and vapor hazards during liquid transfer and batching.
Agriculture & Pest Control: Blocks airborne agricultural chemical mists and particulate sprays.
Operating Limitations
Oxygen Deficiency: Do not use in atmospheres containing less than 19.5% oxygen by volume.
IDLH Environments: Prohibited in Immediately Dangerous to Life or Health atmospheres or unventilated confined spaces.
Contaminant Concentration: Restricted to workplaces where airborne concentrations do not exceed regulatory workplace exposure limits for half masks (10 × WEL).
Compatible Filters & Accessories
|
Accessory / Filter Model |
Filtration Medium |
Target Hazard |
|
Organic Vapor Cartridge |
Activated Carbon Bed |
Organic gases and vapors (boiling point $> 65^\circ\text{C}$) |
|
Particulate Filter Pad (P2/P3) |
Electret Meltblown Microfiber |
Toxic dusts, fumes, oil and non-oil mists |
|
Combination Gas & Dust Filter |
Carbon Bed + HEPA Media |
Simultaneous protection against organic vapors and fine particulates |
|
Filter Retainer Cover |
Molded Polypropylene |
Secures particulate filter pads onto gas cartridges |
|
Replacement Valve Diaphragm |
Flexible Silicone Film |
Direct-fit replacement flap for maintenance |
Use & Maintenance
Pre-Use Inspection
- Inspect the elastomeric facepiece for tears, cracks, cuts, or distortion along the sealing flange.
- Check that the inhalation and exhalation valve flaps lie flat and undamaged on their respective seats.
- Verify that head harness straps retain full elasticity and adjustment buckles hold tension securely.
User Seal Checks
- Negative Pressure Check: Cover the single filter intake port with the palm of your hand, inhale gently, and hold your breath for 10 seconds. The facepiece should collapse slightly inward against the face without air leaking around the seal.
- Positive Pressure Check: Cover the exhalation valve outlet with your palm, exhale gently, and hold for 10 seconds. The facepiece should bulge outward slightly without air escaping through the facial sealing edge.
Cleaning & Storage
- Washing: Remove filter cartridges and disassemble valve flaps. Wash the facepiece in warm water ($\le 40^\circ\text{C}$) mixed with a neutral detergent.
- Rinsing & Drying: Rinse thoroughly with clean running water and air-dry in a clean area away from direct sunlight.
- Storage: Store the clean, dry respirator in its original packaging or a sealed storage bag, away from chemical vapors, dust, and direct heat.
Our Certificates
OEM/ODM & Supply Information
|
Customization Options |
Custom facepiece color matching, private-label head strap printing, custom carton artwork, and multi-language instruction manuals. |
|
Packaging Specifications |
1 piece per sealed polyethylene bag, 1 bag per inner display box, 20 inner boxes per master export carton. Palletized shipping available upon request. |
|
Minimum Order Quantity (MOQ) |
1,000 units for standard factory color configuration; 3,000 units for custom facepiece colors and private-label packaging. |
|
Production Lead Time |
15 to 20 working days following artwork approval and order confirmation. |
|
Sample Availability |
Pre-production samples available for laboratory testing, technical evaluation, and fit testing. |
FAQ
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