NY, NY – According to the US Department of Energy (DOE) the “HVAC system accounts for 40 to 60 percent of the energy used in U.S. commercial and residential buildings. This represents an opportunity for energy savings using proven technologies and design concepts”.

Many of us in tropical Singapore, with its average humidity of 84 per cent, swear by the cool comforts of air-conditioning.

However your health can be compromised, especially when an air-conditioning system (AC system) is not properly maintained.

BALTIMORE — Parents have long known that the polluted, pollinated air outdoors can bring on asthma attacks in their children. Now it turns out that many asthmatic inner-city kids are under assault inside their homes — where cigarette smoke, dust mites, mold and cooking smells can make them sicker than car exhaust or ragweed.

We report a case of hypersensitivity pneumonitis and asthma attacks caused by environmental fungi in a 75-year-old man. The diagnosis was established by inhalation challenge with Bjerkandera adusta and Aspergillus fumigatus.