At Premier Plasmotec Private Limited, our Indian engineering, tooling, manufacturing and quality teams work together on plastic components. PM2.5 and activated-carbon product labels need defined performance evidence. Establish the particle or gas-related requirement, test conditions and exact filter construction.
The essentials
- Separate particulate and gaseous requirements.
- Specify airflow and allowable pressure loss.
- Control frame sealing so air cannot bypass the media.
- Demand test reports with the exact challenge and method.
Particle and gas-filtration objectives
PM2.5 denotes fine particulate matter generally 2.5 µm and smaller; it is not a filter-efficiency rating. Specify the particle-size range and efficiency method at the required airflow and loading condition.
A multilayer particulate medium may balance efficiency, holding capacity and resistance. Pleat geometry determines usable area and local flow distribution.
Activated carbon can adsorb selected gases. Define the named gas, challenge concentration, airflow, humidity and result to be reported for the specified carbon medium. Carbon in the construction alone does not establish removal performance.
What to compare
| Area | Evidence to request |
|---|---|
| Particulate | Particle-size target, method and efficiency report |
| Gaseous | Named gas, challenge, method and adsorption result |
| Airflow | Duty point and allowable pressure loss |
| Construction | Media layers, pleats, frame and seals |
| Fit | Envelope, orientation, bypass control and service life |
Sealing and comparable test evidence
Particulate efficiency cannot be used as evidence of gaseous filtration. Gaseous test results cannot substitute for particle-size efficiency data.
Frame distortion or poor seals can allow unfiltered bypass air. Installation direction and vehicle fit should be clear to the service technician.
Compare pressure loss at the same airflow, element condition and test configuration. Record the element’s shape, size and position as well as loading state; a clean-filter result does not establish service-life performance.
Claims should state method, challenge, duty point and specimen identity.
Questions before choosing a supplier
- Which particle-size range and clean/loaded efficiency results are required?
- Which gases are targeted, and what challenge, airflow and humidity define the gas test?
- What pressure loss is allowed at the specified HVAC duty point?
- How will the frame, installation direction and seals be checked for bypass?
- Which exact element construction and lots do the submitted reports identify?
What to include in your request for quotation (RFQ)
- Vehicle/application, element envelope, orientation and controlled housing interface.
- Airflow duty point, allowable pressure loss and the clean/loaded condition for comparison.
- Particle-size target, test method, efficiency and particulate-capacity acceptance criteria.
- Separate named-gas targets, challenge concentration, humidity, exposure and required adsorption result.
- Approved media layers/carbon construction, pleat geometry, frame, seals and bonding.
- Installation/bypass checks, proposed service assumptions and basis for any service-life claim.
- Demand, production sampling, media/carbon/frame lot traceability and change control.
- Report/specimen identity, packaging, labelling and protective handling.
If a requirement is still undecided, say so in the enquiry.
Technical references
ISO/TS 11155-1:2001 addresses particulate filtration; ISO 11155-2:2009 addresses gaseous filtration. A method reference does not establish a result for the element being supplied.
Use the evidence in your supplier review
For a quotation, keep the drawing revision, material, test requirement and supply responsibility aligned across every offer. Where a requirement is still being developed, identify the open decision and its owner rather than comparing one supplier’s assumption with another supplier’s confirmed scope.
Related manufacturing and buyer resources
Start an engineering discussion
Describe the application, drawing status, expected demand and programme timing through our manufacturing enquiry page. Ask the team how to share confidential drawings or samples through an agreed channel.