For a toddler, the primary risks are respiratory irritation, worsened allergies, and potential sinus congestion. Their developing systems are more sensitive. The black spots indicate active growth, and spores will be circulating whenever the AC runs.

You should report this to building management immediately. Under Dubai municipality regulations, landlords and property managers are responsible for maintaining AC systems and addressing leaks that cause habitability issues. Do not wait until after the weekend; the problem will only worsen.

Until it’s resolved, keep your toddler out of that room and close the door to contain spore spread. Ensure the AC unit is turned off to prevent it from blowing moisture and spores further. A professional inspection is needed to identify the mold species and the extent of the water damage behind the wall or under the carpet, which is often worse than it appears. Proper remediation involves fixing the leak, removing the contaminated materials, and cleaning the air conditioning system itself.