One cause of indoor air contamination is due to bacterial and fungal
contamination of air filters within air-conditioning systems that are poorly
maintained.
through dust filters prior to being cooled at the cooling coil
and blown out from the air conditioner. Dust filters are usually intended to
remove larger particles that would foul the cooling coil and aren’t effective
at removing small airborne particles. As the dust particles are trapped by the
filter, they form a layer that reduces the air flow. If this collected dust
becomes moist it provides nutrients for fungi and mold to grow inside the air
conditioner. When air cools at the coil, it drops moisture to the coil surface
and if the air conditioned is not clean it prevents this condensed water to
drain away, which a perfect condition for fungi and bacteria to grow. This starts
a chain reaction because air that is being circulated through your air-con
system can release the fungi, mold spores, bacteria and odorous VOCs which
contaminates the air you and your family is breathing in.
Regular
maintenance of air-conditioning systems can detect and prevent these problems.
Air-conditioning
units should be inspected regularly to ensure there is no excessive dust
build-up. In some cases, the mold and fungi build-up can be seen without
opening the Air conditioner unit, if this is the case call an air conditioner
specialist to fix the cause of the condensation and to a comprehensive cleaning
of the air conditioner. Do not try to remove mold and fungi yourself, mold can
be highly toxic and if in large quantities should always be handled by a
professional. Bleach doesn’t kill mold, but make it invisible whilst also
feeding it.
If
you do nothing, your air conditioner will continue to release odorous gases and
fungal spores, which can impact respiratory health, such as flu-like symptoms,
asthma, respiratory tract infections, allergic reactions and toxic reactions.
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