BAISHENG 佰聖科技有限公司
Products & Services

Professional Services

Professional Services

2Products
Pre-Filters(8)Medium Filters(5)HEPA / ULPA Filters(6)Activated Carbon Chemical Filters(9)Heat-Resistant Filters(7)Filtration Equipment(3)Custom Filters(8)Cleanroom Equipment(15)Professional Services(2)NIPPON MUKI(34)Metal Fabrication(1)

Baisheng Technology provides professional air filtration services covering the full system lifecycle: HEPA leak testing (PAO / DOP scan), ISO 14644 cleanroom certification, scheduled filter replacement, AMC (Airborne Molecular Contamination) sampling, and consumable management. All test reports conform to ISO 14644-1/3, EN 1822, cGMP, and semiconductor process audit requirements — serving as qualified official verification documents for regulatory compliance.

Key service items: Scheduled filter replacement — assessing optimal replacement timing from differential pressure monitoring data, performing replacement operations, and issuing work records; DOP/PAO scan testing — generating test aerosols to perform filter boundary scans, verifying installation integrity and seal effectiveness; Cleanliness verification — executing particle counting, airflow velocity measurement, differential pressure measurement, and recovery time testing per ISO 14644-1; Airflow balance and system diagnostics — measuring and analyzing abnormal systems with adjustment recommendations.

Target clients: new cleanroom commissioning and acceptance, existing facility annual maintenance contracts, equipment relocation and recommissioning verification, and pre-audit preparation for GMP regulatory certification.

Full-Range Filter Replacement & Disposal Service - Professional Services

Full-Range Filter Replacement & Disposal Service

PAO Leak Test - Professional Services

PAO Leak Test

Frequently Asked Questions

What professional services does Baisheng Tech offer?
Main services include: 1) Filter replacement (including on-site assessment and waste disposal), 2) HEPA leak testing (DOP/PAO scan), 3) Cleanroom cleanliness measurement (particle count, differential pressure, temperature/humidity), 4) AHU cleaning and disinfection, 5) System performance diagnosis and improvement recommendations, 6) Periodic maintenance contracts.
How often should HEPA leak testing be performed?
Per ISO 14644-3 recommendations: general cleanrooms every 6–12 months; pharmaceutical GMP zones every 6 months; semiconductor critical areas every 3 months or after process changes. Baisheng provides DOP/PAO scans and integrity tests, with test reports suitable for customer qualification documents.
What regions in Taiwan are covered by Baisheng's service?
Full coverage of mainland Taiwan, with primary service areas in the north (Hsinchu Science Park, Linkou), central (Taichung Port, Central Science Park), and south (Southern Science Park, Luzhu Science Park). Offshore island and overseas services require separate arrangements; on-site station support can be provided at customer facilities.
How quickly can emergency repairs be dispatched?
General scheduled service takes approximately 3–5 business days. For emergencies (e.g., HEPA rupture, fan failure), on-site arrival within 24 hours is available depending on location and staffing. Signing an annual maintenance contract is recommended for priority scheduling.
What is the difference between PAO and DOP testing? Which is the current standard in Taiwan?
Both PAO (Poly Alpha Olefin) and DOP (Dioctyl Phthalate) are aerosol media used for HEPA leak scanning. Key difference: DOP has suspected carcinogenic risks and has been phased out at European, US, and Taiwan semiconductor fabs (Hsinchu and Southern Science Parks). PAO is a synthetic hydrocarbon — non-toxic, low-volatility, and highly stable — and is now the dominant test medium in Taiwan. ISO 14644-3 and IES-RP-CC034 both designate PAO as the preferred medium; DOP remains acceptable in legacy contracts but is not recommended for new installations.
How long does ISO 14644 cleanroom certification take? What reports are required?
A full ISO 14644-1 certification typically takes 1–3 business days depending on facility size and number of clean zones. Required tests: particle counting (classification), airflow velocity uniformity, differential pressure, and air changes per hour (ACH). Optional ISO 14644-3 tests: HEPA leak testing (PAO scan), temperature/humidity, noise, illumination, and static electricity. Reports must include equipment calibration certificates, instrument calibration records, measurement data sheets, and pass/fail conclusions. Annual re-certification is recommended; re-testing is mandatory after major equipment changes.
Customization

Need Custom Filters?

Special sizes, specific efficiencies, special materials — we can customize to your exact requirements. Contact us for a quote.

Inquire About Custom Filters+886-2-25981958