# A Clean Air Filter and A/C Efficiency Go Hand in Hand > A clean air filter will extend the life of your air conditioner, help lower your energy bill, boost air quality and keep your HVAC system clean. Learn more. [![clean air filter, Holliston, Massachusetts](https://bc.rodenhiser.com/wp-content/uploads/2013/08/air-filter-detail.jpg)](https://bc.rodenhiser.com/wp-content/uploads/2013/08/air-filter-detail.jpg)A clean air filter will not only extend the life of your [air conditioner](http://rodenhiser.com/air-conditioning-framingham/air-conditioning-repair-framingham.html), but also will help lower your energy bill, keep your air quality high and keep your HVAC system cleaner. [![clean air filter, Holliston, Massachusetts](https://bc.rodenhiser.com/wp-content/uploads/2013/08/air-filter-detail.jpg)](https://bc.rodenhiser.com/wp-content/uploads/2013/08/air-filter-detail.jpg) Regularly checking your A/C filter and replacing it when it is dirty is a very important home maintenance step. Because the filter is meant to be checked and changed often, the process is designed to be easy to do. You can usually locate your air filter beside the air handler box, which contains your furnace or A/C's fan and fan motor. Look at the point where the duct goes into the air handler for a small cover or hinged door, typically 1-inch wide, that allows you access. Inside is where the air filter is placed. You will need to remove the old air filter, and if it is dirty, replace it with a new one. Air filters are sold by size as well as by efficiency rating. If you are unsure of the size you need, you can usually find the size on the frame, or you can simply measure your old filter. You will also need to check to see what efficiency rating is best for use with your A/C model. The higher the efficiency the better for your air quality, but you must balance efficiency with airflow because a filter with a rating that is too high can put undue strain on your A/C unit if it is not equipped for [high-efficiency](https://bc.rodenhiser.com/rodenhiser-blog/high-efficiency-air-conditioner-installation-factors-key-performance.html) filters. A clean air filter will allow the air to pass through more easily, saving your air conditioner work, and causing it to use [less energy](http://rodenhiser.com/air-conditioning-framingham/air-conditioning-newton.html) to pull the air in. This translates to less money spent on energy bills, while your A/C unit can work more easily, extending its life span. A fresh air filter also does a better job of filtering the air, keeping it clean and healthy inside your home. If you would like more help and advice about replacing your air filter or any other questions you may have related to the comfort of your home, please [contact us](http://rodenhiser.com/call-rodenhiser.html) at Rodenhiser Plumbing, Heating & Air Conditioning. We've been the go-to experts in home comfort in the Route 495/128 area of Massachusetts since 1928. *Image via [Shutterstock.com](http://Shutterstock.com)* ## Navigation - [Rodenhiser Home Services](https://bc.rodenhiser.com/) - [Rodenhiser Plumbing Services](https://bc.rodenhiser.com/plumber-framingham.html) - [Rodenhiser Heating Services](https://bc.rodenhiser.com/furnace-framingham.html) - [Rodenhiser Cooling Services](https://bc.rodenhiser.com/air-conditioning-framingham.html) - [Rodenhiser Electrical Services](https://bc.rodenhiser.com/framingham-electricians.html) - [Rodenhiser Home Services: Book Online](https://bc.rodenhiser.com/call-rodenhiser/book-online.html) - [Rodenhiser Remodeling Services](https://bc.rodenhiser.com/remodels/bathroom-remodeling-framingham.html) - [Rodenhiser Home Services: Reviews](https://bc.rodenhiser.com/rodenhiser-heating.html) ## Company information - Rodenhiser Home Services - [https://bc.rodenhiser.com](https://bc.rodenhiser.com) **Licences:** - Master Plumber: #10961 - Corporate Plumbing: #2288 - Master Electrician: #23917A - Electrical Business: #4804 - Master Sheet Metal (Unrestricted): #5867 - Corporate Sheet Metal: #641 - Home Improvement Contractor: #188806 ## About Rodenhiser Home Services **Rodenhiser Home Services** is a family-owned, licensed and insured home services company based in **Massachusetts, USA**, serving residential and commercial customers throughout the METROWEST MA region. Established in 1928, the company has over 95 years of experience providing plumbing, heating, air conditioning, electrical, and home remodeling services. Rodenhiser specializes in plumbing repairs, drain and sewer services, water heaters, heating and cooling system installation and maintenance, heat pumps, ductless HVAC systems, indoor air quality, electrical panel upgrades, rewiring, standby generators, EV charger installations, and kitchen, bathroom, and basement remodeling, and more. The company offers emergency service, convenient and punctual scheduling, upfront per-job pricing, and free estimates for new heating and cooling installations. All work is backed by written warranties and a satisfaction guarantee. Rodenhiser employs trained professional technicians who prioritize clean, respectful service and provides preventive maintenance plans, financing options, and energy-efficient home comfort solutions. Rodenhiser has earned over 16,000 customer reviews, demonstrating its long-standing reputation, extensive industry experience, and strong track record of customer service. **Nice People…Great Service** ## Page information - [Canonical URL: https://bc.rodenhiser.com/rodenhiser-blog/clean-air-filter-ac-efficiency-hand-in-hand.html](https://bc.rodenhiser.com/rodenhiser-blog/clean-air-filter-ac-efficiency-hand-in-hand.html)