Many indoor air quality problems can be solved or avoided by cleaning or replacing the air filter in the home. Since using air filters is one of the most common methods of cleaning the air, be sure to check your filter every 3 months or schedule a certified technician to change it at the beginning of every season.
The Filters efficiency is measured by the following three factors.
• The amount of dirt the filter can hold.
• The size of the smallest particle that can be removed.
• A degree of discoloration on the exhaust side of the filter being tested.
Air filters and electrostatic filters cleaners are usually rated by MERV ( Minimum efficiency reporting value, commonly known as MERV rating, is a measurement scale designed in 1987 by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) to rate the effectiveness of air filters.- More Information) which determines efficiency by the size of particle that the filter will capture. Values vary from 1 to 16 and the higher the number the more efficient the filter will be in trapping airborne particles.
There are five basic types of filters:
• Disposable filters
• Washable filters
• Electrostatic filters
• HEPA filters
• Ultra Violet light and the air scrubbers plus
Disposable filters: These filters are made of a cardboard frame and filter material. As their name implies, disposable filters are meant to be discarded when they become dirty. They can come in various sizes and the most common ones are 1″, 2″ and 4″.
Washable filters: Washable filters can be removed and cleaned as directed, dried and then reinstalled. Although more expensive to purchase, you do not have to buy as many as the disposable.
Electrostatic filters: Static electricity attracts dirt and dust to vertical and overhead surfaces. The static is often generated when two surfaces rub together and then are separated. And electrostatic filter puts a static electrical charge on all particles in the air that pass through eight filter layers. The discharge particles are then attracted to collector plates with an opposite electrical charge. These filters are washable as well. More Details
HEPA filters: HEPA or “high-efficiency particular air filter” removes a high percentage of particles in the air as the air passes through an air purifier. To qualify as an HEPA filter under US government standards, it must capture 99.97% of airborne particles. HEPA filters perform significantly better than an ionic process in electrostatic air cleaners. HEPA filters are most often used in medical facilities and for homeowners who suffer from severe allergies.
Ultra Violet light: Ultraviolet light or UV light is a light bulb that is usually inserted into the heating and cooling system and can eliminate up to 99.9% of the microorganisms and destroy viruses, bacteria, and fungi in the air. The type of microorganisms and quantity killed depends on the length of exposure and the output of the lamps. Nowadays there are more advanced UV lights like the air scrubber that can even kill viruses and bacteria from surfaces and the air. More Details
Air Scrubber Plus: Cleaning, mopping, and offending odors can be harmful to us. Air Scrubber Plus with Active-Pure technology, makes mopping up offending odors, cleaning surfaces, and even reducing harmful airborne contaminants as simple as turning your furnace on for the first time, your fan, or your HVAC system.
Filters tend to get clogged and once their capacity has been reached the dirt is then released downstream to the system and into the heat exchanger, covering the inside of the ductwork and the blower motor. The dirt can then cause issues and malfunctions in the mechanical and electrical parts of the system and result in high repair costs and even worse. The dirt will circulate back into the house with all the dirt, bacteria and moisture in the system and can result in mold and fungi. Dirty filters can also affect energy cost due to insufficient air flow and result in increased fan runtime. More Details
Tip: Make sure to monitor your filter’s ability to hold the dust and dirt in the house. Every home is different by size and location and filter change times may vary from one month up to 6 months.
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