• Increase energy bills
• Result in frequent equipment repairs
• Shorten equipment service life

The single most important thing you can do to keep your air conditioning and heating system working efficiently is to make sure the air filter is matched to the unit and is clean.

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Here are some guidelines to follow in determining when to change your HVAC air filter:

• At the beginning of Heating & Cooling seasons
• During and after any significant home renovation
• After a professional has completed the cleaning of your furnace ducts
• When a decrease in flow is noticed at the registers
• When a professional HVAC technician measures a significant increase in pressure drop during Preventive Maintenance service
• Upon inspection, you note that the filter is loaded up with dust or debris or is damaged

Clean air filters can also provide other benefits such as cleaner air and reduced allergy symptoms. Originally the primary purpose of air filters was only to keep system components (blower and evaporator coil) clean. Today, more than ever more attention is given to cleaning the air we breathe.

The John W. Danforth Company is an active member of The National Air Filtration Association with over 20 years experience in HVAC air filtration. We can help you find the optimum air filter for your industrial, commercial or residential application. We ship anywhere in North America.

It’s easy to find and buy the right filter for your application, visit danforthfilters online for all the information you need on:

• Disposable Air Filters
• Pleated Air Filters
• Activated carbon Odor Control Filters
• Paint Booth Filters
• HEPA Air Filters
• Medium & High Efficiency Box, Bag, and V-Bank Filters
• Air Filter Media in Panel and Roll Forms