Yes, a ductless mini-split air conditioning and heating system can potentially make you sick or trigger health symptoms if it is severely neglected and allowed to accumulate mold, mildew, bacteria, and dust inside its damp interior components. Because the indoor evaporator coil constantly extracts moisture from warm air, the dark, humid environment inside the wall cassette provides an ideal breeding ground for microbial growth and fungal spores if filters and coils are not cleaned regularly. When the fan runs, these allergens and volatile organic compounds are recirculated into your living space, aggravating asthma, allergies, and respiratory irritation. You can troubleshoot cleanliness by inspecting the blower wheel and coil fins. You can verify that your indoor air is safe when monthly filter washing and professional deep cleaning eliminate musty odors and stop allergy flare-ups.
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