We are often reminded of just how stale our indoor air can become from a summer or winter of keeping our homes shut on those beautiful spring and fall days. It takes every bit of self-control not to throw the windows open and run away from work just to bask in the sunshine. So many people wonder if keeping their homes closed is really the best thing for indoor air quality these times of year. However experts say that air conditioning, when properly maintained, can improve indoor air quality significantly.
Easy enough. Air conditioners take the air in your home, suck it through a filter, pass it over a very cold coil and push it back out through a series of vents. Your air conditioner and air handler are actually removing a great number of particles from the air and making your home a safer place to breathe during that process. Before the indoor air even enters the air handler the filter caught the larger particles. Then the air handler pulls the water soluble particles out of the air with excess moisture.
Cycle after cycle, dust, debris and pollutants are brought into the system through the return air duct, where the air is cleaned and returned to the room. You may need to take a better look at the whole system if your air still feels stuffy, stale, or you’re still struggling to breathe. We have several ways you can help improve your air conditioner’s ability to filter the air:
Often Changing the Air Conditioner Filters. However it may sound overly simplistic but the fact is that the cleaner your filters are, the cleaner your air will be. Check your Air Conditioner filters at least once every two weeks and replace them as soon as they look dirty. Perhaps you heard that impacted dirt on your filter helps catch more dirt. However what this actually does is reduce air flow, making it harder for your air conditioner to clean the air.
Cleaning the Evaporator Coil. You can clean your evaporator coil yourself in case of some furnaces, while others will require an air conditioning technician for the task. Anyway, keeping a coil clean is vital to having clean indoor air. Every time you change the filter get your evaporator coil cleaned at least once a year and check it.
Tightening and Cleaning Ducts. Ducts that are dirty simply blow more dirt into your home. The same goes for ducts that are open to the attic or crawlspace. When you ensure that your ducts are tightly sealed and have them professionally cleaned you eliminate a potentially endless source of dirt, dust and pollutants.
If you’re trying to advance your indoor air quality with your air conditioning system, you also need to pay special attention to your air conditioner’s Minimum Efficiency Reporting Value (also known as the MERV rating). Your system is rated to handle the filter you choose, so you can target the pollutants that are really bothering you by choosing a filter woven tightly enough to capture the offenders.
Classic home filters have a rating of MERV 8 to MERV 13, though MERV ratings from 1 to 20 are often available for commercial clients. It means the same thing no matter if you’re using a disposable filter or a washable electrostatic filter. Here’s a rapid rundown:
MERV 8. MERV 8 is a “better” residential filter according to most shops. These filters can catch mold spores, dust mites, animal dander and other fine particles like hairspray. They rate in the 90th percentile or above for dust removal when compared to other filters. MERV 8 rated filters can remove up to 35 percent of all the dust particles in the air.
MERV 9 through 12. MERV 9 filters remove up to 45 percent of dust particles from the air. They have the ability to capture airborne particles as small as milled flour and automotive emissions. Filters with MERV ratings of 9 through 12 are very good filters for improving air quality. MERV 12 filters can remove as much as 75 percent. Bigger isn’t always better. Sometimes these filters create unnecessary stress on your air handler.
MERV 13. A MERV 13 filter may be for you if you have immune system problems. They can trap all types of bacteria, tobacco smoke and even sneeze droplets. You can expect a filter in this category to catch up to 90% of the dust in the air. However have a pro check your unit to be sure it can handle the reduced air flow these filters can create.
An air filtration system will handle considerably more air cleaning than your air conditioner alone, if you simply want to improve your indoor air quality. It just takes is a little extra effort to keep dust out of your system and changing your filters can make a big difference. Give the professionals from our company a call if your unit’s blowing more dust than it’s collecting. We’ll clean your whole system on your schedule and improve your indoor air quality in no time flat.