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Testing & Inspection

Know what your people are breathing.

We measure indoor air against the DOSH Industry Code of Practice on Indoor Air Quality 2010 and ASHRAE 62.1 — from CO₂, temperature and humidity to particulates, VOCs and airborne bacteria and fungi. Results are compared to limits, root causes are traced back to the HVAC system, and you get a clear plan to fix them.

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Clean, bright hospital corridor
01

Regulatory confidence

Assessment aligned to ICOP-IAQ limits and the OSH Act 1994.

02

Root-cause answers

We connect readings to ventilation, filtration and duct hygiene issues.

03

Healthier, sharper teams

Fresh, well-ventilated air reduces fatigue, headaches and absenteeism.

Scope

What’s included

  • CO₂, CO, temperature and relative humidity
  • PM2.5 / PM10 and total particulates
  • Total VOCs and formaldehyde
  • Airborne bacteria and fungi (CFU/m³) sampling
  • Ventilation rate and outdoor air assessment
  • Annual IAQ monitoring programmes

You receive

Deliverables

  • IAQ assessment report
  • Readings vs. limits table
  • Root-cause & action plan

Typical sectors

  • Healthcare
  • Commercial
  • Education
  • Industrial

How we work

Our process

  1. 01

    Walk-through

    We review complaints, occupancy and the HVAC layout.

  2. 02

    Sample

    Calibrated instruments record readings across representative zones.

  3. 03

    Compare

    Results are measured against ICOP-IAQ and ASHRAE limits.

  4. 04

    Recommend

    Practical fixes — from filter upgrades to duct cleaning or rebalancing.

Questions

What limits do you assess against?

We use the DOSH ICOP-IAQ 2010 acceptable limits — for example, below 500 CFU/m³ for airborne bacteria and 1,000 CFU/m³ for fungi — alongside ASHRAE 62.1 ventilation guidance. Typical comfort targets are CO₂ at or below 1,000 ppm, 23–26 °C and 40–70% relative humidity.

Related services

All services
Rows of air-conditioning condenser units with fans

Air-Conditioning Services

Installation, preventive maintenance and breakdown repair for split, VRF, packaged, FCU, AHU and chiller systems.

Insulated metal ductwork running overhead through a building

Duct Cleaning & Sanitisation

Source-removal cleaning of supply, return and exhaust ductwork to NADCA ACR practice, with anti-microbial treatment.

Vertical ducts and pipes running through a plant space

Robotic Duct Cleaning

Our in-house camera robot and drill-driven rotary brushes reach duct runs and risers no person can enter — cleaning and filming as they go.

Talk to us about indoor air quality assessment.

Tell us about your building, plant or facility. We’ll come back within one working day with next steps — a site survey, inspection or a clear quotation.

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