Hygiene Air Unit

A Hygiene Air Unit (often referred to as a Hygienic AHU) is a specialized air handling system engineered for environments where microbial control, ease of sterilization, and air purity are non-negotiable. While standard AHUs prioritize general thermal comfort, a Hygiene Air Unit is a "Biologically Inert" machine designed to prevent the unit itself from becoming a source of contamination.

At EKG (Malaysia) SDN BHD, our hygiene units are engineered to meet the stringent VDI 6022 (Hygiene Requirements for HVAC Systems) and HTM 03-01 standards, ensuring full compliance with the 2026 EECA 2024 energy mandates.

1. Core Engineering: Hygiene vs. Standard AHU

The primary difference lies in the internal architecture. A Hygiene Air Unit eliminates "dead zones" where dust and moisture can accumulate to foster bacterial growth.

• Smooth Internal Surfaces: All internal skins are typically SUS 304/316 Stainless Steel. Joints are sealed with medical-grade, anti-fungal sealants to create a flush, crevice-free air path.

   

• TB2 Thermal Break Casing: Mandatory for hygiene. By physically decoupling the inner and outer skins, we eliminate the casing "sweat" (condensation) that leads to external mold growth—a critical requirement for MOH (Ministry of Health) Malaysia audits.

• Total Access Design: Every section of the unit—including the fans, coils, and filters—is equipped with large access doors and viewing ports. This allows for the "wipe-down" sterilization required in pharmaceutical and clinical settings.

2. The Sanitization & Filtration Sequence

A Hygiene Air Unit acts as a multi-stage barrier against airborne pathogens.

1. Multi-Stage Filtration: We utilize a sequence starting with G4/F7 pre-filters, moving to F9 secondary filters, and terminating in H13/H14 HEPA filters for surgical or cleanroom applications.

2. UV-C Germicidal Irradiation (UVGI): 254nm UV-C lamps are positioned to bathe the cooling coil and drain pan. This destroys the DNA of bacteria and viruses on contact and keeps the coil free of bio-fouling, maintaining maximum heat transfer efficiency.

3. Hygienic Moisture Removal: We utilize multi-sloped SUS 304 drain pans. These are engineered to ensure zero standing water, evacuating condensate immediately to prevent the growth of Legionella or biofilm.

    

3. Comparison: Hygiene vs. Standard Performance

4. 2026 Energy Compliance (EECA 2024)

While hygiene is the priority, the Energy Efficiency and Conservation Act 2024 requires these units to be ultra-efficient.

• IE5 EC Fan Arrays: We replace legacy belt-driven fans with modular "Fan Walls." These are 30% more efficient and provide N+1 redundancy—if one fan fails, the others ramp up to maintain the sterile pressure regime.

• Low SFP (< 1.1 $kW/m^3/s$): By utilizing low-face-velocity coils ($< 2.0\ m/s$), we reduce the work the fan must perform, ensuring your facility stays within its mandatory Building Energy Intensity (BEI) targets.

• EnMS Integration: Every EKG hygiene unit connects to your Energy Management System (EnMS) to provide the auditable energy data required for statutory annual reporting starting in early 2026.

Why Partner with EKG (Malaysia) SDN BHD?

• Technical Integrity: We provide the Validation Documentation (IQ/OQ) and SFP Reports required for both clinical accreditation and energy audits.

• Precision BIM Coordination: Our 3D modeling ensures that these larger hygienic units fit perfectly within your mechanical room while maintaining the required service clearances.

• BOMBA-Compliant Safety: All materials, including non-shedding insulation and clinical-grade gaskets, are fire-rated (Class 0 or B1).

Is your current air handling infrastructure a contamination risk for your 2026 audits? Contact EKG (Malaysia) SDN BHD today. We specialize in engineering Hygiene Air Units that are sterile, silent, and ultra-efficient.