Healthy Homes of New Hampshire

(formerly Clean Exteriors)

HVAC Filter & Condenser Cleaning

Air filters play an important role in maintaining the cleanliness of your home by trapping dust and particles out of the air you breathe.  According to the EPA the filter used in the central heating/cooling system of the home can effectively reduce indoor particle concentrations when the system is operating or when only the fan is turned on. Most home systems use a low MERV (1-4) fiberglass filter that is 1” thick. Replacing this filter with a medium efficiency filter (MERV 5-8) can significantly improve the air quality in your home. Higher efficiency filters (MERV 9-12) will work even better, and a true high efficiency filter (MERV 13-16) can reduce indoor particles by as much as 95 percent. Filters with a High Efficiency Particulate Air (HEPA) rating, (or MERV 17-20) are the most efficient. You may need to consult with a local heating and air technician or the manufacturer of your central air system to confrm which (or if ) high efficiency filters will work with your system. If you can’t switch to a more efcient flter, running the system continuously by switching the thermostat fan from “Auto” to “On” has been shown to reduce particle concentrations by as much as 24 percent. Remember your home’s air flow becomes restricted when dust collects on your air filter. It is recommended to replace disposable air filters, and clean electrostatic air filters every 30 to 60 days. If anyone in your home suffers from allergies or asthma, it is especially important to have good indoor air quality. Change or clean your air filters every 30 days. 


We also offer central air conditioning condenser cleaning. Condenser coils get dirty in the process of cooling the refrigerant. Dirt from the air outside is absorbed into the outdoor cooling unit and begins to build up on the coils. The bigger the buildup, the harder it is for the cooling system to perform. Electric bills increase and indoor comfort decreases because the system needs more energy to keep up with the demand for cooled air. If the condenser coils become too coated with dust and dirt, they can no longer convert the hot refrigerant gas back into a liquid. This can cause your system to stop producing cool air, even though it’s still running. Then the compressor can overheat, causing air conditioner breakdown.

​Healthy Homes of New Hampshire offers one time or recurring replacement service for disposable air filters, cleaning service for electrostatic air filters and cleaning service for central air conditioning condensers. 

Give us a call for details at 603-566-9794