When your air filters are dirty, change them. Depending on:
Type of filter your A/C system requires
The overall air quality of your your city area home
Pets – Birds, cats, dogs, hamsters (do you have one?), etc.
Number of occupants in the house
General air pollution in the your city area or construction taking place nearby
In summary:
Seldom used home or single occupant homes without pets or allergies: Change 6-12 months
Typical suburban home without pets: Change every 90 days
Add a dog or cat: Change every 60 days
Multiple pets or have allergies: Change every 30-45 days
Depending on the filter they usually have a recommended time frame. I always recommend every 3 months and always when you change from A/C to Heat or vice verse
Depends on the type of filter you have. If you have the standard filter it should be changed once a month. If you have a media or electronic filter it should be changed ever 3 months.
Every Three months .
Animal dander and winter months increase the load on the furnace check it during the harsh winter months. I highly recommend an april air system or jandy HVAC controller unit.
I would check my filters at least twice a year depending on how much you use them. In my house I check and clean the filters in the beginning of spring and once again in the middle of the summer.
It can vary depending on the type of filter, we recommend using the heavier duty filters that say 3 months on the package, You can also get some less expensive that should be replaced every 30 days.
Replacing an air filter is cheap and easy maintenance that will keep your air conditioner running for years to come. Add a calendar reminder and do this every 3 months.
Air Filters are recommended to be inspected every 3-6 months depending on the type of filter and usage of your HVAC System. It is also recommended having your AC Serviced once a year before summer time preferably in the Spring. Check out this link for AC Maintenance it will show you what should be inspected and included in a Maintenance
