AC leak causing black mold and sore throat? Professional help?« Back to Previous Page

The AC in my bedroom closet has been leaking a bit for the last couple of weeks, and now I’m seeing a bunch of black spots spreading on the wall and our stored clothes. My throat has been feeling a bit scratchy in the mornings and I’m worried it’s connected. Is this something I can clean myself with bleach from the supermarket, or do I need to call one of those professional mold remediation companies in Dubai?
Posted by Elizabeth Jones
Asked on April 5, 2026 5:34 pm
Based on your description, this is a classic and serious scenario we frequently encounter in Dubai due to our high humidity and constant AC use. The black spots are almost certainly active microbial growth, and your scratchy throat is a common physiological response to inhaling mold spores and mycotoxins, especially during sleep when exposure is prolonged.

Bleach is strongly discouraged. It is ineffective on porous materials like drywall and fabric, as it only bleaches the surface pigment without killing the root structure (hyphae) inside the material. More critically, mixing bleach with other cleaners or applying it in a confined space can produce dangerous chloramine gases.

The AC leak has created a perfect habitat for mold: a constant moisture source (condensate leak), organic food source (dust, cellulose in drywall, cotton clothes), and darkness. Simply wiping the visible spots will not address the contamination within the wall cavity or the HVAC system itself, which likely requires professional hygienization to prevent spore dissemination throughout your bedroom.

For a situation involving stored textiles, visible wall contamination, and health symptoms, professional assessment and remediation are not just recommended but essential. We adhere to strict IICRC S520 protocols for mold remediation and Dubai Municipality guidelines for environmental health and safety. Our process involves isolating the area, using HEPA filtration to capture airborne spores, safely disposing of non-salvageable porous materials (e.g., contaminated drywall), and applying EPA-approved antimicrobials to eliminate the growth at its source.

I recommend you stop using the AC in that closet immediately and call for a professional inspection. Our certified team at Saniservice can conduct a thorough assessment, including air and surface sampling, to determine the extent of the contamination and provide a definitive remediation plan. Please contact us at 800-MOLDS (800-66537) or hello@saniservice.com.
Posted by Sani Admin
Answered on April 8, 2026 12:35 pm