Dehumidification can be very important if you live in areas of high humidity. High humidity in cooler temperatures gives you a wet, clammy feeling. In warmer temperatures, it causes a wet, sticky feeling and causes perspiration to stay on your body and soak into your clothes rather than evaporate.
High humidity can also cause mold and mildew throughout the house and even ruin very expensive clothes, fabrics, paintings, and wall coverings. All air-conditioning units take out some humidity when they are running, but for very humid areas, you need a dehumidifying system. This can take out up to 15 times more water from the air than a standard system with very little operating cost penalty.
Be sure your home's air is clear of dust, pollen, fungi, smoke, and other particles too small to see. It's easy with a HEPA, electronic, or media air cleaner. These cleaners provide stepped-up filtration, more effective than your furnace or air conditioner alone. In fact, these cleaners can remove up to 94% of the particles that pass through your home's system. And since these pollutants can build up as film on walls and furniture, this is performance you'll feel and see.
The evaporator coil is a series of piping connected to a furnace or air handler that blows indoor air across it, causing the coil to absorb heat from the air. The cooled air is then delivered to the house through ducting. The refrigerant then flows back to the compressor where the cycle starts over again.
Use an energy recovery ventilator for warm climates or a heat recovery ventilator for cooler regions. These air exchangers quietly bring in fresh, clean air from the outside and remove stale inside air, along with dust and other particle buildup.