Claims about UAE requirements for mould and indoor air quality circulate widely and are rarely sourced. This page states what could and could not be verified from primary sources, emirate by emirate, and says plainly what does not exist. Negative findings are given as negative findings rather than softened into vague reassurance, because a building owner deciding what to commission is better served by knowing that a number does not exist than by being handed one that turns out to belong to a foreign document or to a voluntary scheme in another emirate. Sources were read directly rather than through secondary summaries, and where nothing was identified, that is what is recorded.
Every statement here rests on a document or an index page published by the authority that issues it, read directly. Contractor marketing, aggregator summaries and second-hand descriptions were not treated as sources, because those are where most of the circulating misdescriptions originate.
A negative finding is recorded as an absence from a published index or from the text of a document, which is what a primary source can support. It is not a claim that nothing could conceivably exist unpublished. Where an authority states the status of its own document, that authority's wording is quoted rather than paraphrased, because paraphrase is where status quietly changes. Version numbers and issue dates are recorded, because both change and because a citation without them cannot be checked.
No UAE federal indoor air quality or mould instrument was identified from a primary source. Nothing on this site is built on the assumption that one exists, and no figure used anywhere on this site is presented as a federal value.
The practical consequence is that statements of the form that indoor air quality testing is obligatory throughout the United Arab Emirates, or that a national fungal limit applies to every building, were not supported by anything identified. Where such a claim is made in a proposal or a report, the document behind it should be named before the claim is relied on.
Dubai Municipality's Technical Guidelines for Indoor Air Quality for Healthy Life (Doc Ref DM-HSD-GU119-IAQ, Version 4, issue date 11 December 2024, superseding the issue of 10 July 2024) is the only document of its kind identified anywhere in the country. It is published by the Health and Safety Department and describes its own purpose as providing guidance for healthy indoor air quality, and describes itself as a tool to enable establishments to comply with relevant local regulation.
Section 9-8-3 opens: "The buildings which optionally apply the following procedures will be awarded indoor air quality certificate by Dubai municipality." Table 1, for new buildings tested prior to occupancy, gives total fungal counts of 500 CFU/m³, total bacterial counts of 500 CFU/m³, total volatile organic compounds of 300 μg/m³ over eight hours, formaldehyde of 0.01 ppm over eight hours with a short-term maximum of 0.08 ppm (0.1 mg/m³) over thirty minutes, PM2.5 of 35 μg/m³ over twenty-four hours, PM10 of 150 μg/m³ over twenty-four hours, and lead of 0.15 µg/m³ over three months. Table 2, for existing buildings, gives total fungal counts of 500 CFU/m³, total bacterial counts of 1,000 CFU/m³, carbon dioxide of 800 ppm over eight hours, total volatile organic compounds of 0.6 mg/m³ over eight hours, PM2.5 of 35 μg/m³ over twenty-four hours and PM10 of 150 μg/m³ over twenty-four hours. The bacterial count is the only difference between the two tables for the parameters they share. Table 3, covering thermal comfort in all new and existing buildings, gives dry bulb temperature of 22.5–25.5 °C, relative humidity of 20–60% qualified by "Never to exceed 56%RH at 80F (27C) and 86%RH at 67F (19C).", and air movement of 0.2–0.3 m/s. Testing under the route is to be carried out by a company or laboratory accredited by the Emirates International Accreditation Centre, with compliant results submitted to Dubai Municipality. The guideline states these microbiological limits without specifying a sampled air volume or a sampling duration for them — the Average Time column is left blank for total bacterial and total fungal counts, whereas every chemical and particulate limit in the same table carries one. Section 9-8-7 sets only a general sampling period, that measurements should be made on an 8-hour basis except where otherwise specified with an accepted surrogate of four averaged half-hour measurements, and does not assign that basis to culture-based sampling; no sampler type, flow rate, culture medium or incubation regime is given. The guideline requires only that testing be carried out by a laboratory accredited under the Emirates International Accreditation Centre (EIAC) scheme on calibrated equipment. A CFU/m³ figure is therefore not comparable between two surveys unless the reporting laboratory states the air volume it sampled and over what period.
These are the values Dubai Municipality's indoor air quality guideline sets for buildings that opt into its indoor air quality certificate. The guideline describes itself as guidance rather than as a binding standard, and the certificate route is expressly optional. They are a published reference point within a voluntary Dubai Municipality scheme, not an enforceable UAE limit.
The Abu Dhabi Public Health Centre's index of Codes of Practice was read line by line. No Code of Practice covers mould, fungal contamination, biological agents in buildings, indoor air quality or building ventilation hygiene. The nearest entries by subject are Code of Practice 5.0 on occupational health screening and medical surveillance, Code of Practice 12.0 on the prevention and control of Legionnaires' disease, Code of Practice 27.0 on confined spaces, and Code of Practice 52.0 on local exhaust ventilation, none of which addresses this subject.
The emirate's Occupational Standards and Guideline Values (Version 3.0, 2016) is the only Abu Dhabi document setting exposure values, and ADPHC's page for it states verbatim: "This document is currently suspended. Entities are to comply with relevant local or federal standards in force." Its schedule is a chemical-agent table derived from ACGIH threshold limit values and contains no fungal or bioaerosol value at all, so even setting the suspension aside it would not supply a figure for this subject.
The framework in the emirate is ADOSH-SF, renamed from its predecessor, and the competent authority is the Abu Dhabi Public Health Centre. Material still citing the former acronym has not been reviewed since the change.
The Sharjah Prevention and Safety Authority guideline OSHJ-GL-05, Managing Buildings Safety, was examined. It addresses the inspection and maintenance of heating, ventilation and air conditioning systems. It says nothing about mould, about moisture, or about indoor air quality testing.
It is therefore not cited anywhere on this site as authority for this subject, and a citation of it for that purpose would be a misdescription of its contents. No Sharjah instrument on mould or indoor air quality was identified.
Four things could not be verified from any primary source and are stated here as absences rather than left to be inferred. No UAE federal indoor air quality or mould instrument was identified. No Abu Dhabi mould or fungal exposure value exists, either in the suspended document or elsewhere. No licensing or approval scheme specifically for mould remediation contractors was identified in any emirate. And no testing or remediation interval imposed by any UAE instrument was identified anywhere in the country.
Each of those has a practical counterpart that is worth recognising when it appears. A claim that a building is overdue for a mould test could not be traced to any instrument identified. A claim that a contractor is approved for mould remediation cannot be checked against a register, because no such register was identified. A claim that a fungal result breaches an Abu Dhabi value is describing a value that does not exist. None of those claims can be verified by the person receiving it, which is precisely why they persist.
The World Health Organization's Guidelines for Indoor Air Quality: Dampness and Mould (2009), United States Environmental Protection Agency remediation guidance, AIHA and ACGIH bioaerosol methods and the ISO 16000 series are the documents that competent work in the region is actually built on. They shape how an investigation is structured, how sampling is designed, what is measured and how results are reported, and they are the reason two independent consultants approaching the same building tend to arrive at broadly similar methods.
Their status is recognised practice and nothing more. They create no duty in the United Arab Emirates, and none of them sets a numeric airborne fungal concentration that can be applied as a pass or a fail. The WHO document is explicit that the association between dampness and respiratory effects justifies acting on the dampness, without isolating a causative agent or setting an exposure limit.
A report that cites one of them as though it imposed a local obligation has misdescribed it, and a report that cites a clause number from one of them without quoting the clause is asking to be taken on trust. Both are common enough to be worth checking for.
Four questions settle almost every such claim. Which document is being relied on? Which version and issue date? Which table or clause within it? And has the building entered any scheme voluntarily that would make those terms applicable to it?
If the answer to the first question is a foreign document, the claim is about recognised practice rather than local duty, and it should be described that way. If it is the Dubai Municipality guideline, the next questions are whether the building is in Dubai and whether it has entered the certificate route, because the figures belong to that scheme. If it is the Abu Dhabi exposure values document, the claim fails twice over: the document is recorded by the authority as suspended, and it contains no fungal value to breach. If no document can be named at all, that is itself the answer.
None of this makes measurement pointless, and none of it excuses a damp building. The recognised response to visible growth and to the moisture that produced it does not depend on a threshold and never did. What the questions do is separate what a document actually says from what a proposal, a report or a marketing page says it says, and in this subject in this country that distinction does a great deal of work.
No UAE federal indoor air quality or mould instrument was identified from a primary source, and no figure on this site is presented as a federal value.
Technical Guidelines for Indoor Air Quality for Healthy Life, Doc Ref DM-HSD-GU119-IAQ, Version 4, 11 December 2024. Publishes fungal, bacterial, particulate, TVOC and thermal comfort figures inside an expressly optional certificate route.
No Code of Practice covers this subject. The Occupational Standards and Guideline Values (Version 3.0, 2016) is recorded as suspended and contains no fungal or bioaerosol value in any case.
SPSA guideline OSHJ-GL-05 Managing Buildings Safety addresses HVAC inspection and maintenance and says nothing about mould, moisture or indoor air quality testing. No Sharjah instrument on this subject was identified.
No licensing or approval scheme specifically for mould remediation contractors was identified in any emirate, so competence cannot be established by consulting a register.
No testing or remediation interval imposed by any UAE instrument was identified anywhere in the country, so a claim that a building is overdue for testing has no identified source.
The only published local figures identified anywhere in the United Arab Emirates are those in Dubai Municipality's Technical Guidelines for Indoor Air Quality for Healthy Life (Doc Ref DM-HSD-GU119-IAQ, Version 4, 11 December 2024), which give total fungal counts of 500 CFU/m³ for both new and existing buildings, total bacterial counts of 500 CFU/m³ (new) and 1,000 CFU/m³ (existing), and a thermal comfort band of 22.5–25.5 °C dry bulb and 20–60% relative humidity subject to stated temperature-dependent ceilings. No Abu Dhabi Code of Practice covers this subject; the emirate's exposure values document is recorded as suspended and contains no fungal value. No federal instrument was identified. Sharjah's OSHJ-GL-05 addresses HVAC inspection and maintenance and is silent on mould, moisture and indoor air quality testing. The guideline states these microbiological limits without specifying a sampled air volume or a sampling duration for them — the Average Time column is left blank for total bacterial and total fungal counts, whereas every chemical and particulate limit in the same table carries one. Section 9-8-7 sets only a general sampling period, that measurements should be made on an 8-hour basis except where otherwise specified with an accepted surrogate of four averaged half-hour measurements, and does not assign that basis to culture-based sampling; no sampler type, flow rate, culture medium or incubation regime is given. The guideline requires only that testing be carried out by a laboratory accredited under the Emirates International Accreditation Centre (EIAC) scheme on calibrated equipment. A CFU/m³ figure is therefore not comparable between two surveys unless the reporting laboratory states the air volume it sampled and over what period.
These are the values Dubai Municipality's indoor air quality guideline sets for buildings that opt into its indoor air quality certificate. The guideline describes itself as guidance rather than as a binding standard, and the certificate route is expressly optional. They are a published reference point within a voluntary Dubai Municipality scheme, not an enforceable UAE limit.
No UAE federal indoor air quality or mould instrument was identified from a primary source. Where a proposal or report asserts one, the document behind the assertion should be named and its version checked before the claim is relied on.
Dubai Municipality's Technical Guidelines for Indoor Air Quality for Healthy Life (Doc Ref DM-HSD-GU119-IAQ, Version 4, 11 December 2024). Those figures sit inside a certificate route that Section 9-8-3 describes as one buildings optionally apply.
No Sharjah instrument on mould or indoor air quality was identified. The SPSA guideline OSHJ-GL-05, Managing Buildings Safety, addresses HVAC inspection and maintenance and says nothing about mould, moisture or indoor air quality testing.
No testing or remediation interval imposed by any UAE instrument was identified anywhere in the country. A claim that a building is overdue for testing could not be traced to any identified source.
No. They are recognised practice. They shape how investigation, sampling and reporting are designed and are widely used in the region, but they create no duty in the United Arab Emirates and none of them sets a numeric airborne fungal limit that can be applied as a pass or a fail.
Ask which document, which version and issue date, which table or clause, and whether the building has voluntarily entered any scheme that makes those terms applicable to it. If no document can be named, that is the answer.