Can I clean black mold under AC myself?« Back to Previous Page

Given the size (dinner plate) and location (under carpet on concrete), this is not a DIY job with bleach. In Dubai's climate, the high humidity and constant AC use create ideal conditions for mold to penetrate porous materials like concrete and carpet backing. Bleach only removes surface discoloration and does not address the root moisture problem or kill the mold at its source.

Your symptoms—stuffy head and sore throat—are commonly associated with prolonged exposure to the mycotoxins and allergens released by actively growing mold colonies. The leak has provided a consistent moisture source, allowing the mold to establish itself deeply.

For a proper remediation, the AC leak must be repaired first to prevent immediate recurrence. The affected carpet and underlay likely need to be removed and disposed of. The concrete slab then requires specialized antimicrobial treatment to kill the embedded fungal roots, followed by moisture testing to ensure it is completely dry before any new flooring is installed.

This process involves containing the area to prevent spores from spreading to other parts of your home during removal, which is a key reason professional handling is advised for cases of this scale. A certified mold inspector can use moisture meters and thermal imaging to confirm the full extent of the damage, which is often larger than what is visible.