Could a dirty AC unit be causing my kids' cough?« Back to Previous Page

My kids have been coughing more than usual, especially in the evenings, and I'm starting to think it's our AC. I noticed the unit on our balcony in the Marina apartment is absolutely caked in dust and sand, and it's been like that since before the last sandstorm. Could a dirty AC coil be blowing irritants into the air and affecting their health? How urgently should I get a professional cleaning done?
Posted by Rohan Chopra
Asked on April 20, 2026 6:01 pm
0
Yes, a dirty AC coil can absolutely be the source of your kids' cough. The evaporator coil inside your unit is constantly damp from condensation, and when it's caked with dust and sand from our environment, it creates an ideal breeding ground for mould, bacteria, and other allergens. Every time the AC turns on, it can blow these irritants directly into your indoor air.

Given your location in the Marina with high humidity and constant AC use, this is a very common issue. The sandstorm residue has likely made it significantly worse. The coughing being worse in the evenings often points to prolonged exposure in a contained space like a bedroom.

You should arrange for a professional inspection and cleaning promptly. Do not attempt to clean a heavily soiled coil yourself, as improper cleaning can damage the delicate fins and fail to address microbial growth. A proper cleaning involves specific antimicrobial solutions and should be followed by a verification check to ensure the system is no longer emitting contaminants. For health symptoms, it's advisable to have this done within the next week or two.
Posted by Sani Admin
Answered on April 23, 2026 12:18 pm