Monthly Archives: May 2016

Facts About Indoor Air Quality

blogThe air inside your home can be more polluted than outside air. This is due to houses being more airtight and containing chemicals, gases, smoke, and germs. A company that sells purification systems, like Pure Air, in St. Louis can give you more information on how they can clean your air and keep it clean.

Contaminants in the Air

Here is a list of common contaminants and some of their sources:

  • Toxic gases like formaldehyde from building materials
  • Fiberglass from building materials
  • VOCs (volatile organic compounds) from paint, cleaning products, pesticides, disinfectants, and glue
  • Gas emissions from carpet and furniture
  • Dust mites from rugs, curtains, and upholstery
  • Bacteria, mold and fungi from damp places, or stagnant water
  • Carbon monoxide from car exhaust, heaters, or tobacco smoke.

Reasons to Purify Your Air

Contaminated indoor air can pose health risks to members of your family and pets. Here are some of the health problems than can be caused by poor indoor air quality.

  • Allergies
  • Respiratory problems
  • Sneezing and coughing
  • Dizziness
  • Nausea
  • Headache
  • Fatigue


A filter is placed in the air flow of heaters and air conditioners to clean the air. Pleated filters have more surface area so they are better at cleaning the air. HEPA filters will filter out very small particles in the air and are considered high efficiency.

Photocatalytic Oxidation (PCO)

This type of air purifier makes ions, or charged particles. It creates an electrical field called a corona discharge. When larger molecules pass through, they pick up an electron and become ionized. Then, these molecules stick together, making them heavier, and settle out of the air.

UV Light

Germicidal lights use ultraviolet radiation to stop the growth of airborne microbes, like mold, viruses, and bacteria, by sterilizing them so they can’t reproduce. A UV light system continues to operate even when the heater or air conditioner is not on.

Is It Time to Replace Your HVAC System?

air conditioning in St. Louis, MissouriMost homeowners don’t think about their HVAC system until it breaks down or is obviously not working properly. It is important to have expensive equipment checked out regularly to ensure it is working properly and efficiently.

At some point, your HVAC system will need to be replaced and sometimes it is hard to determine when this should be done. For those of you who have heating and air conditioning in St. Louis, Missouri, here are some ways to know it is time to consider replacing your system.

System Is 10 Years Old

Even though a system usually can run for 15 to 20 years, after 10 you need to consider replacing it. A newer model will be more energy efficient, which will save money on energy bills, operating costs, and maintenance. Repairing an older unit doesn’t guarantee that its life will be extended. Making the investment and upgrading will give you a system that will last for many years. Also, there are incentives and rebates that can help sweeten the deal.

Repair Bills Adding Up

If you are repairing the system often, then you need to consider replacing it. You need to realize that an older system that needs repairs is probably running less efficiently, costing even more money. Over time, major repairs and emergency fees can be almost as expensive as replacing the unit.

System Runs a Lot and Is Noisy

Either one of these can point to a system that is nearing the end of its life. The noise you hear can indicate a major problem, like the indoor coil. A system that runs more often than usual is using a lot of energy and working harder than it should.

Comfort Level Changes

If your home seems muggy, your system is not operating properly. If some rooms are too cold or too hot, this can also show a problem. If your system is old and not regulating the temperature, consider replacing with a new, efficient unit.