Organic Vapor & Acid Gas Protection: Technical Specification for Filter 702
The ZKBESTA Model 702 is a combination filter cartridge designed for respiratory protection against specific gaseous contaminants and particulates.
It is classified as Type A1E1 for gas/vapor filtration and Class FFP2 for particle filtration under European standards.
The filter housing is marked with the classification "A1E1" and model number "702", and carries the CE mark, indicating conformity with Regulation (EU) 2016/425 and the harmonized standard EN 143:2000 for particulate filters.
For procurement and technical evaluation, the key parameters are its filtration efficiency, gas adsorption capacity, and physical compatibility with existing respirator systems.
Technical Parameters & Compliance
The following table details the performance specifications for the Model 702 filter, referencing the applicable test standards and minimum requirements.
|
Parameter |
Test Standard |
ZKBESTA Value (Typical) |
EN Minimum Requirement |
|
Particulate Filtration Efficiency |
EN 143:2000 |
≥ 94% (NaCl & Paraffin Oil) |
≥ 94% (FFP2 Class) |
|
Total Inward Leakage (TIL) |
EN 143:2000 |
≤ 2% (Geometric Mean) |
≤ 2% (FFP2 Class) |
|
Gas Filter Type |
EN 14387:2004+A1:2008 |
A1E1 |
N/A |
|
A1 Capacity (Organic Vapor) |
EN 14387 |
> 60 minutes |
> 35 minutes (for CH2Cl2) |
|
E1 Capacity (Acid Gas) |
EN 14387 |
> 60 minutes |
> 20 minutes (for SO2) |
|
Breathing Resistance (Inhalation) |
EN 143:2000 |
< 1.5 mbar @ 95 L/min |
< 3.0 mbar (FFP2 Class) |
|
Breathing Resistance (Exhalation) |
EN 143:2000 |
< 1.0 mbar @ 95 L/min |
< 3.0 mbar (FFP2 Class) |
|
Connection Type |
EN 148-1 |
Bayonet (RD 40x1/7") |
Standard for half masks |
Gas & Vapor Protection Capabilities (A1E1 Classification)
The "A1E1" designation defines the specific gases and vapors this filter is engineered to protect against. It is a combination filter, meaning it contains both a particulate pre-filter layer (P3) and an activated carbon layer for gas adsorption.
Type A1: Organic Vapors
This classification indicates protection against organic gases and vapors with a boiling point > 65°C.
Typical Contaminants: Solvents like acetone, benzene, gasoline, paint thinners, and xylene.
Application: Suitable for spray painting, chemical handling, and degreasing operations where organic solvent concentrations do not exceed 1000 ppm (0.1% by volume).
Type E1: Acid Gases
This classification indicates protection against specific acid gases.
Typical Contaminants: Sulfur dioxide (SO2), hydrogen chloride (HCl), and other inorganic acid gases.
Application: Relevant for chemical processing, pickling operations, and certain laboratory environments.
The capacity test, conducted per EN 14387, measures the breakthrough time-the duration it takes for the concentration of a test gas on the clean-air side of the filter to reach a specified level. A higher capacity indicates a longer service life before the filter becomes saturated and needs replacement.
Physical Compatibility & Integration
The Model 702 filter utilizes a standard bayonet-style connector, which is widely compatible with half-mask respirators from major manufacturers that adhere to the EN 140 standard.
Connection Standard: The bayonet fitting is designed to mate securely with the corresponding inlet ports on a half mask, ensuring an airtight seal.
Cross-Brand Compatibility: While designed for use with ZKBESTA half masks, the standard connection often allows for use with other brands. However, users must verify physical fit and seal integrity before use in a hazardous environment.
Low-Profile Design: The filter's shape is engineered to provide a wide field of vision and minimize interference with other Personal Protective Equipment (PPE), such as safety helmets or eye protection.
Procurement & Supply Information
For distributors and HSE managers evaluating supply chain options, the following commercial terms apply to the Model 702 filter.
|
Term |
Detail |
|
Minimum Order Quantity (MOQ) |
500 pieces per model |
|
Standard Lead Time |
15-25 days after order confirmation |
|
Packaging |
10 pieces per box, 120 pieces per carton |
|
OEM Services |
Custom logo printing and packaging available (MOQ applies) |
|
Factory Audit |
ISO 9001 certified facility; audit reports available upon request |
|
Port of Loading |
FOB Xiamen, China |
FAQ
1.Q: What is the service life of the A1E1 filter 702 in a spray painting environment?
A: Service life depends on contaminant concentration, humidity, and breathing rate. There is no fixed duration. Implement a change-out schedule based on sensing taste/smell (breakthrough), increased breathing resistance, or a calculated schedule per EN 14387 Annex D.
2.Q: Can the Model 702 filter be used with a 3M half-mask respirator?
A: The filter uses a standard bayonet connection common to many EN 140 certified half masks. While physically compatible with many models, including some from 3M, users must perform a user seal check to ensure a proper fit before relying on it for protection.
3.Q: What documentation is provided with a bulk order of filters?
A: Each shipment includes a Declaration of Conformity (DoC) stating compliance with Regulation (EU) 2016/425 and EN 143:2000. Test reports from the Notified Body and material safety data sheets (MSDS) are available upon request.
