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Why Are We Different? How Often Should I Change My AC Filters? What Filter Should I Buy?
Since 1995, we have been manufacturing the highest quality pleated air filters at our facility in San Antonio, Texas, USA. The air you breathe is our priority. When you buy filters from us, you get the best product available made by people who really care about quality — and clean air! The answer to this depends on your unique situation. Here are some variables to consider: if you live in an extremely hot climate where your AC is constantly running, filters ought to be changed once a month. In moderately warm climates, you can stretch that to two months. If your AC sits idle half the time, then every three months could make sense.

Another important factor to consider is the level of airborne allergens in your area. Allergens can come in from the outside — think dirt, dust, mold, pollen — or they might already be in the home — think family pets, dust mites, roaches, mice, mold. Also, think about things that are not allergens, but that can trigger attacks — cigarette or cigar smoke, wood smoke, sawdust, chemical sprays, perfumes. If you have any of the situations noted above, consider a more frequent filter replacement cycle.
Each filter has a MERV (minimum efficiency reporting value) rating. Residential ratings run from a high of 13 to a low of 1. The higher the number, the better the filtration. We offer you High Performance Allergy (MERV 10), which is usually found in standard commercial buildings and better residences, and High Performance Allergy-Plus (MERV 13), which is used in superior residential and superior commercial buildings.
Why Are We Different?
Since 1995, we have been manufacturing the highest quality pleated air filters at our facility in San Antonio, Texas, USA. The air you breathe is our priority. When you buy filters from us, you get the best product available made by people who really care about quality — and clean air!
How Often Should I Change My AC Filters?
The answer to this depends on your unique situation. Here are some variables to consider: if you live in an extremely hot climate where your AC is constantly running, filters ought to be changed once a month. In moderately warm climates, you can stretch that to two months. If your AC sits idle half the time, then every three months could make sense.

Another important factor to consider is the level of airborne allergens in your area. Allergens can come in from the outside — think dirt, dust, mold, pollen — or they might already be in the home — think family pets, dust mites, roaches, mice, mold. Also, think about things that are not allergens, but that can trigger attacks — cigarette or cigar smoke, wood smoke, sawdust, chemical sprays, perfumes. If you have any of the situations noted above, consider a more frequent filter replacement cycle.
What Filter Should I Buy?
Each filter has a MERV (minimum efficiency reporting value) rating. Residential ratings run from a high of 13 to a low of 1. The higher the number, the better the filtration. We offer you High Performance Allergy (MERV 10), which is usually found in standard commercial buildings and better residences, and High Performance Allergy-Plus (MERV 13), which is used in superior residential and superior commercial buildings.
Our customers share the unfiltered truth about Filters4Air ...
We love Filters4Air and I hope you will check them out. I really like supporting local businesses and keeping my money here in San Antonio. - Jonathan D
Filters4Air is going above and beyond to get us a filter promptly. Their prices are very reasonable for the quality of the filter. - Elizabeth Y
I really enjoy the fact that the filters are waiting on my doorstep every filter cycle and I don't have to buy in bulk and figure out where to store them so they won't get damaged. - Trey C
I ordered today, assuming the filter would be here in several days from now. Much to my surprise, it was delivered a little while ago! Boy, talk about fast service!! - Gib J
Filters4Air makes changing my filters the easiest thing ever. I signed up and never had to think about it again. Thank you for doing such a great job and helping me simplify. - Andria A
The idea of a subscription filter service was new to me, but after a few hot summer months I realized I am a smart person -- thanks !!! - David M
Not only did I always forget to change my filters, I forgot the filter size. But after signing up with Filters4Air, I never have to think about it again. Thanks! - Aren M
Filters4Air News

Clean air — don't take our word for it.

Clean air — don't take our word for it.

One of the things we do here on the Filters4Air blog is constantly harp to our readers about changing their filters on a regular basis.

Many folks think — "Of course Filters4Air wants the Customer to change their filter so Filters4Air can sell more filters!"

Yes, true, but we aren't the only folks who think changing filters on a regular basis is one of the very important things you can do to keep your indoor air as healthy as possible.

The EPA (Environmental Protection Agency) states that the air quality within homes can be more polluted than the outdoor air even in the largest and most industrialized cities. But there are things you can do to seriously improve your indoor air quality and make your home a healthier place.

One of the things the EPA says you should do is →

Clean or change all the filters in your house regularly, particularly those for your heater or furnace, air conditioner, air purifier, and vacuum. Follow the manufacturer’s instructions and stay up to date.

How about another government agency — the Consumer Product Safety Commission. They say →

"Blocked, leaking, or damaged chimneys or flues release harmful combustion gases and particles and even fatal concentrations of carbon monoxide. Strictly follow all service and maintenance procedures recommended by the manufacturer, including those that tell you how frequently to change the filter. If manufacturer's instructions are not readily available, change filters once every month or two during periods of use. Proper maintenance is important even for new furnaces because they can also corrode and leak combustion gases, including carbon monoxide."

https://www.cpsc.gov/Safety-Education/Safety-Guides/Home/The-Inside-Story-A-Guide-to-Indoor-Air-Quality

Harvard University has some information →

https://www.health.harvard.edu/staying-healthy/easy-ways-you-can-improve-indoor-air-quality

Change your filters. If you have a forced-air heating system, be certain to change the filters regularly, says Dr. BuSaba. Electrostatic filters can help ensure that dust and other airborne irritants get trapped instead of being recirculated throughout your home.

This is from the American Industrial Hygiene Association​ →

https://www.aiha.org/about-ih/Pages/Air-Quality-in-the-Home.aspx

Use higher efficiency furnace or air conditioner air filters and change filters frequently

So, you don’t have to listen to us here at F4A constantly telling you to change your air filters regularly – you can check out the above sources saying the same thing...

One last visit to the EPA (https://www.epa.gov/indoor-air-quality-iaq/should-you-have-air-ducts-your-home-cleaned) →

How to Prevent Duct Contamination

Whether or not you decide to have the air ducts in your home cleaned, committing to a good preventive maintenance program is essential to minimize duct contamination.

To prevent dirt from entering the system:

✔ Use the highest efficiency air filter recommended by the manufacturer of your heating and cooling system.

✔ Change filters regularly.

✔ If your filters become clogged, change them more frequently.

✔ Be sure you do not have any missing filters and that air cannot bypass filters through gaps around the filter holder.

✔ When having your heating and cooling system maintained or checked for other reasons, be sure to ask the service provider to clean cooling coils and drain pans.

✔ During construction or renovation work that produces dust in your home, seal off supply and return registers and do not operate the heating and cooling system until after cleaning up the dust.

✔ Remove dust and vacuum your home regularly. (Use a high efficiency vacuum (HEPA) cleaner or the highest efficiency filter bags your vacuum cleaner can take. Vacuuming can increase the amount of dust in the air during and after vacuuming as well as in your ducts).

✔ If your heating system includes in-duct humidification equipment, be sure to operate and maintain the humidifier strictly as recommended by the manufacturer.

We all love clean air.

Now go buy a filter from us !!!

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