Black mold in AC vent: DIY or professional remediation?« Back to Previous Page

Black mold in AC vents is a legitimate health concern, especially for children. The persistent cough you describe is a common reaction to mold spores being circulated by the AC unit. Given Dubai's high humidity and constant AC use, this is a frequent issue; condensation inside the ducts creates the perfect damp environment for mold to thrive.

For a small, surface-level patch, a DIY approach with a vinegar solution (more effective than bleach on porous surfaces) can be attempted. However, if the mold is spreading and visible along the vent edges, the growth inside the ductwork is likely more extensive. Disturbing it yourself can aerosolize a high concentration of spores throughout the room.

Professional remediation is strongly advised in this case. The process involves containing the area, removing the contaminated vent and cleaning the ductwork with specialized equipment like HEPA vacuards and antimicrobial treatments to address the root cause. The final cost is highly variable, as it depends on the extent of the infestation within the system. You should request an on-site assessment from a certified provider; they can give you a scope of work and a precise quote after inspecting the full system. For verification, choose a company that provides before-and-after surface or air quality testing data from an accredited lab.