When it comes to changing the air filter of your central heating plus a/c, you should always do it at least once a week. That is what I was told by my local heat plus a/c specialist. I actually did not guess anything about this until I was told. However, before hand I would always change the air filter of my central heating plus a/c once every many weeks. While it was ok, I observed a immense difference in the air quality within my beach house when I started changing the air filter of my central heating plus a/c once a week. It seems that when I change my air filter once a month it feels so much better in terms of my allergies. I do not even have to turn on my portable media air cleaner in the home office as often once I started changing the air filter of my central heating plus a/c once a week. This is why I am telling you all this. I would adore most people to guess that by changing the air filter of your central heating plus a/c once a month you can highly improve the air quality in your home. I hope that this information about air filters plus your heating plus a/c can be helpful as it has been to me when it comes to changing the air filter! You always can learn something new about your central heating plus a/c when you look for more information about it.