Client Background
A ready-to-eat food manufacturer in the Bangkok area operates a 1,000 m2 clean packaging workshop. The building layout places the cleanroom beside the central kitchen, while tropical humidity places continuous load on the HVAC system.
The Challenges
- Primary filters were clogging quickly because of combined oil-mist drift and moisture loading.
- Condensation on standard FFU housings created hygiene concerns under the client’s retail-chain customer standards.
- Materials and components in the packaging zone needed washable, corrosion-resistant, food-compatible construction.
The WISHE Solution
- Washable G4 primary filter cotton at the intake stage, designed for a weekly cleaning cycle.
- F7 medium-efficiency box filters with increased dust-holding capacity for the second stage.
- SS304 FFUs with moisture-protected motors and condensation-drainage details.
- A written maintenance schedule aligned to the client’s sanitation calendar, together with consignment stock of spare media on site.
Results
Validation note: The following performance indicators are from the supplied project draft and should be checked against project records before external use.
- The supplied draft records a longer filter-replacement cycle after the staged filtration upgrade.
- The brief reports lower annual filtration and maintenance costs than the prior replacement approach.
- The reference records that the packaging workshop passed the retail customer’s hygiene audit with the filtration upgrade included in the evidence pack.