Description

Technical Parameters

The Dual-Filter Particulate Respirator integrates an elastomeric half-mask facepiece with dual bayonet filter ports designed for replaceable particulate filter cartridges. Fabricated from liquid silicone rubber, the internal seal flange conforms naturally to varied facial contours to maintain air tightness during movement. Twin lateral air channels balance intake across two separate filtration paths to lower breathing resistance, while the central exhalation valve vents warm air outward to prevent moisture collection within the facepiece.

Key Features

01/

Twin Bayonet Inhalation Flow: Distributes intake air through two side filter ports, reducing breathing resistance during high-effort work.

02/

Liquid Silicone Sealing Edge: Conforms evenly against facial contours to prevent perimeter air leakage..

03/

Downward Air Discharge: Channels exhaled breath toward the bottom to limit moisture buildup inside the mask.

04/

Four-Point Head Harness: Balances tension across the head and neck to prevent pressure marks during long operations.

05/

Tool-Free Filter Locking: Bayonet engagement allows fast cartridge replacement with a simple quarter-turn twist.

Design & Components

Component	Material Specification	Functional Role
Facepiece Seal	Liquid Silicone Rubber	Flexible skin-contact edge forming an airtight seal
Filter Mount	Polypropylene Frame	Dual bayonet structural interface for locking cartridges
Exhalation Valve	Silicone Flap with Polymer Seat	One-way release valve venting moisture and exhaled air
Inhalation Valve	Thin Silicone Disc	Check valve preventing backflow into filter media
Head Harness	Elastic Webbing with Crown Plate	Four-point tension system securing mask placement

Technical Specifications

Test Parameter	Performance Value	Test Reference Standard
Particulate Filtration	≥ 95%	EN 143 / EN 149 / GB 2626
Inhalation Resistance (30 L/min)	≤ 30 Pa	EN 140 Section 7.10
Inhalation Resistance (95 L/min)	≤ 100 Pa	EN 140 Section 7.10
Exhalation Resistance (160 L/min)	≤ 140 Pa	EN 140 Section 7.10
Total Inward Leakage	< 2%	EN 140 Fit Test Protocol
Mask Weight	105g	Direct Scale Measurement
Operating Temperature	-30°C to +70°C	Climate Chamber Test

Applications & Limitations

Recommended Applications

Metal Processing: Welding smoke management, metal grinding, thermal cutting, foundry operations.
Construction & Mining: Rock drilling, concrete cutting, silica dust exposure, dry aggregate handling.
Manufacturing: Chemical powder loading, dry pigment mixing, pharmaceutical ingredient transfer.
Wood Working: Timber sanding, sawdust processing, agricultural grain milling.

Operational Limitations

Do not use in environments where oxygen concentration is below 19.5%.
Do not use for protection against airborne gas or toxic vapor unless fitted with chemical combination cartridges.
Do not use when facial hair disrupts contact between the silicone seal edge and skin.

Compatible Filters & Accessories

Accessory Type	Configuration	Protection Scope
Particulate Filter Disc	Round Pad Element	Solid and liquid non-oily airborne particles
Encapsulated Filter Box	Hard Case Cartridge	High-concentration particulate matter in high-moisture settings
Filter Adapter Cap	Plastic Retainer	Secures pre-filter pads over base filter elements
Cotton Pre-Filter	Non-Woven Pad	Captures coarse dust to extend main filter service life
Replacement Strap Kit	Webbing with Buckles	Renewal harness assembly for routine mask maintenance

Use & Maintenance

Pre-Operation Check

Inspect facepiece seal for surface defects, dirt accumulation, or elasticity loss.
Verify the exhalation valve disc rests flat against the valve seat.
Confirm both bayonet filter mounts are clean and free from mechanical wear.

Cleaning Protocol

Remove filter cartridges, exhalation valve cover, and head straps before washing.
Clean the silicone mask body using warm water under 50°C with mild neutral soap.
Rinse thoroughly with clear water and air dry away from direct heat or radiant sunlight.

Storage Requirements

Store in clean storage containers away from high dust, direct sunlight, and reactive chemical fumes.
Ambient storage conditions: Temperature between -10°C and +30°C, relative humidity under 80%.

Our Certificates

product-1-1

OEM/ODM & Supply Information

Operational Parameter	Specification
Customization Scope	Custom mask colors, custom strap branding, custom inner box artwork, multi-language manuals
Minimum Order Quantity	1,000 units for standard configuration; 3,000 units for custom colorways
Packaging Configuration	1 unit per individual box, 20 boxes per shipping carton (Carton: 54 cm × 38 cm × 42 cm, Gross Weight: 7.2 kg)
Daily Production Output	15,000 units across automated production lines
Production Lead Time	15 to 20 days for standard orders; 25 to 30 days for customized orders
Dispatch Ports	Xiamen / Shenzhen / Shanghai
Payment Terms	T/T, L/C at sight

FAQ

Q: How does a dual-filter mask lower breathing resistance compared to single-filter models?

A: By directing incoming air through two side-by-side filter ports, total surface area for airflow doubles. This halves the airflow speed passing through each filter channel, reducing inhalation resistance by 30% to 40% and lowering breathing strain during heavy physical exertion.

Q: What is the typical service life of the facepiece body and filter elements?

A: The silicone mask body lasts 2 to 3 years under regular maintenance and proper storage. Filter elements need replacement when inhalation resistance increases noticeably during use or when physical particle loading shows on the filter surfaces.

Q: Can the mask body withstand daily washing and decontamination?

A: Yes, liquid silicone rubber resists moisture, washing cycles, and mild soap detergents without losing structural elasticity. Ensure filter elements are removed prior to washing and allow full air drying before reassembly.

Q: What options are supported for private label orders?

A: Custom manufacturing options cover custom silicone body colors, custom logo marking on strap buckles, custom retail packaging layouts, multi-language user guides, and specialized shipping carton prints.

Hot Tags: dual-filter particulate respirator, China dual-filter particulate respirator manufacturers, suppliers, factory