Indoor Air Quality (IAQ) Test

Measure What You Can't See

Most workplaces and classrooms look spotless.
But the air inside can quietly carry fine particles, excess CO₂ and chemical vapours that affect comfort, focus and wellbeing.

For just S$88, FJ SafeSpace helps you uncover what is really in your air through a 60-minute professional IAQ health check.

Using the uHoo Aura™, a RESET Air Accredited Grade B monitor and SGBC-recognised Green Building Product, we provide real-time insights trusted by preschools, clinics and offices across Singapore.

  • 1-Hour On-Site Assessment

  • Real-time readings of CO₂, PM₂.₅, TVOCs, temperature and humidity, etc

  • On-site interpretation and actionable guidance

  • 1-Hour On-Site Assessment

  • Real-time readings of CO₂, PM₂.₅, TVOCs, temperature and humidity, etc

  • On-site interpretation and actionable guidance

As Featured In

What Is Indoor Air Quality (IAQ) Testing?

Indoor Air Quality (IAQ) testing measures the health and comfort of the air you breathe indoors.

It helps identify invisible pollutants such as fine particles, volatile organic compounds (VOCs), and carbon dioxide levels that can affect productivity, concentration, and wellbeing.

At FJ SafeSpace, every assessment follows our SAFE-AIR Protocol™: Survey, Analyze, Fix, Educate, a structured process designed to identify air risks, correct them, and verify results.

Our assessments use the uHoo Aura, a Singapore Green Building Product (SGBP) certified under the SGBC scheme and RESET Air Accredited Grade B monitor.


The uHoo Aura captures a comprehensive range of indoor environmental indicators in real time, including CO₂, particulate matter, TVOCs, formaldehyde, carbon monoxide, temperature and relative humidity.

Every indicator we measure

We measureWhat it tells you
Carbon dioxide (CO₂)The clearest sign of weak ventilation. High CO₂ means drowsy, foggy rooms.
PM2.5Fine particles that reach deep into the lungs.
PM10Coarser dust from haze, traffic and renovation.
PM4Mid-sized indoor dust.
PM1Ultrafine particles from cooking and combustion.
TVOCsVapours from paint, glue, cleaning products and new furniture.
FormaldehydeA common irritant from plywood, laminates and furnishings.
Carbon monoxideColourless, odourless, dangerous even in small amounts.
Ammonia (NH₃)A sharp irritant from cleaning agents, waste areas and some industrial processes.
Ozone (O₃)Irritates the airways. Can come from printers, copiers and some air devices.
TemperatureThermal comfort you can feel, measured precisely.
HumidityToo high breeds mould. Too low dries out eyes and throats.
Air pressureHelps us read how air moves through your space.
LightPoor light strains eyes and dulls alertness.
NoiseSustained noise wears people down across a working day.

Risk scores you can act on

The uHoo Aura™ does not only measure. It turns those readings into plain-English scores, so instead of interpreting raw numbers you can see at a glance whether your space needs attention.

RESET Air Index

An overall score of your indoor air quality against RESET Air, a recognised international standard for healthy buildings.

Mould Index

Assesses the conditions that allow mould to grow, so you can act before it takes hold.

Virus Index

Indicates how current air conditions affect the survival and spread of airborne viruses.

Influenza Index

Flags when temperature, humidity and ventilation may support flu transmission.

Norovirus Index

Assesses conditions linked to norovirus persistence. Useful in elder care and healthcare settings.

Pollen Index

Estimates how indoor conditions influence pollen persistence and allergy risk.

Vape Index

Indicates when air conditions are consistent with vaping activity. Useful for schools and offices.

Why Conduct an IAQ Test for Your Business?

  • Protect Health: Detect pollutants and allergens early.

  • Enhance Productivity: Better air means better focus.

  • Benchmark Your Air: Understand your readings against recognised indoor air quality guidelines.

  • Reduce Costs: Optimise ventilation and HVAC efficiency.

  • Strengthen Reputation: Visible commitment to healthy spaces.

Why Choose FJ SafeSpace to Protect Your Home & Office?

We've partnered with uHoo to provide the best indoor air quality solutions

Our indoor air quality monitors are powered by cutting-edge sensor technology from uHoo which has been certified by Singapore Green Building Council.

Unlike conventional monitors, these devices feature a sophisticated multi-sensor array that detects a wide range of airborne contaminants, including PM2.5 (fine particulate matter), volatile organic compounds (VOCs), carbon dioxide (CO2), carbon monoxide (CO), and other harmful gases.

This advanced technology provides real-time, precise readings, keeping you informed of any indoor air pollution so you can take immediate action to protect your health.

We use advanced energised air molecules, patented (PhotoPlasma™) air and surface disinfection technology

Our patented PhotoPlasma™ technology offers a powerful triple action: sterilising, disinfecting, and refreshing the air. This cutting-edge technology harnesses the natural cleaning power of the outdoors, bringing it directly into your indoor spaces for a healthier environment.

Unlike traditional methods, PhotoPlasma™ employs a unique combination of negative ions, hydroxyl radicals, singlet oxygen, ultraviolet light, and a small amount of ozone for a more thorough and sustainable clean.

Certified by leading organisations such as the EPA, CE, and RoHS, our BioZone PhotoPlasma™ Air Purifier meets rigorous global standards for environmental safety and performance. These certifications confirm that our technology has been stringently tested and proven to deliver exceptional air purification results.

Learn more about the science behind PhotoPlasma™ here.

Proven track record

Since February 2023 we have completed more than 250 indoor air quality assessments across Singapore, in preschools, clinics, offices, F&B outlets and industrial facilities.

Our founder Jay Choy is a Green Mark Associate certified by the Singapore Green Building Council, and holds an Executive Certificate in Corporate and Environmental Sustainability from NTU.

In Exploring the Science of Clean Air on CNA938, Jay spoke with presenter Melanie Oliveiro about indoor air quality in Singapore.

Our uHoo sensors are trusted by:

How We Assess Your Indoor Air Quality

Every indoor air quality (IAQ) assessment by FJ SafeSpace follows our SAFE-AIR Protocol™:
Survey, Analyze, Fix, Educate.


A structured 60-minute process that measures your indoor air quality, explains what the readings mean, and identifies whether anything needs closer investigation. Used across preschools, clinics, offices and industrial facilities in Singapore.

Step 1. Book Your IAQ Assessment

Choose a date and time that suits your operations. Book online, or reach us by WhatsApp or email. Your 60-minute indoor air quality assessment covers one selected area.

Step 2. Survey Your Space

On arrival we walk the area with you and note what shapes your air: occupancy levels, ventilation, air-conditioning and possible pollutant sources such as printers, cleaning products or new furnishings.

Step 3. Monitor for 60 Minutes

We place the uHoo Aura™, a RESET Air accredited monitor, at a representative location. It captures indoor air quality data continuously, including CO₂, particulate matter, TVOCs, formaldehyde, temperature and relative humidity.

Step 4. Analyse the Findings

We examine your readings, the patterns across the hour, and any unusual conditions, referencing recognised indoor air quality guidelines where applicable.

Step 5. Explain What We Found

Before we leave, we talk you through the important observations in plain English: what your readings mean for the people using the space, and whether anything warrants a closer look.

Choose Your Package

MOST BOOKED

S$88: IAQ Health Check

A 60-minute on-site indoor air quality assessment of one selected area, with your readings explained on site in plain English.

S$220: IAQ Health Check + Detailed Report

The same 60-minute assessment, plus a written report documenting and benchmarking your readings against recognised indoor air quality guidelines, with tailored observations and recommendations. Delivered within 2 to 3 working days.

Need something more extensive?

Some spaces call for longer monitoring or coverage across multiple areas. We scope the work to your requirement and quote accordingly. Tell us about your space

If the findings call for action

Where readings show a genuine problem, we can discuss what comes next: longer monitoring, ventilation improvements, or air and surface disinfection powered by Photoplasma™ technology. We measure first, then fix.

Your IAQ Health Check is a screening assessment, not an SS 554 compliance audit or laboratory test.

Client Testimonials

See What Our Satisfied Clients Have to Say

Real Results from Our IAQ Test Reports (PDFs)

Take a look at how our indoor air quality tests are making a real impact. These reports give you a clear
picture of what you can expect.

Take the First Step Toward Healthier Air

The IAQ Health Check by FJ SafeSpace helps you create cleaner, more comfortable spaces for people to breathe, work and thrive.

Using SGBC SGBP and RESET Air certified technology, we turn invisible risks into visible improvements.

Every Breath You Take, We’ve Got You Covered.

FJ Safespace

Every Breath You Take, We've Got You Covered.

At FJ SafeSpace, we measure indoor environmental quality, explain what the readings mean, and fix what needs fixing. Our SAFE-AIR Protocol™ runs Survey, Analyse, Fix, Evaluate on every job. Measure before you fix. Evaluate after you fix. We use the uHoo Aura, a RESET Air Accredited Grade B monitor and Singapore Green Building Product certified sensor, measuring 15 parameters plus seven computed risk indices, alongside patented Photoplasma™ air and surface disinfection by Biozone Scientific.

More than 250 assessments completed across Singapore since 2023.

Get Your Clean Air Today

+65 9738 0302

hello@fjsafespace.com

6 Aljunied Ave 3 #03-05

Guthrie Engineering Building

Singapore 389932

FJ SafeSpace 2026