What is MERV?
- MERV is an acronym for MINIMUM EFFICIENCY REPORTING VALUE.
- MERV is a relative performance rating system created by ASHRAE (American Society of Heating, Refrigerating, and Air Conditioning Engineers).
- MERV measures the filter's ability to capture a variety of airborne particles – from large particles measured in microns down to sub-micron particles.
- The higher the MERV rating the better the filter is at removing substances from air.
- MERV ratings are assigned to air filters or filter media that have been tested to an ASHRAE standard.
How often should I change my air filter?
- We recommend checking your filter every 30 days.
- Most standard 1” and 2” pleated filters indicate the filter can last up to 90 days.
- Fiberglass filters have a recommended change out period of every 30 days.
- Each home environment is different- pets, remodeling/construction, smoking can all reduce filter life.
- Some HVAC systems are designated to hold 4’/5” filters. These Residential Air Cleaner filters – 4”/5” pleated filters – can last from 6-12 months depending on the filter.
Are your filters UV compatible?
- No, our filters are not UV light compatible.
How do I install my HVAC filter?
- Turn Fan Off - Always turn the system or fan to OFF before removing the existing filter
- Remove Packaging from new filter - carefully remove the plastic wrap and or label from new filter
- Record Install Date – Record the date in the space provided on the new filter
- Air Flow Arrow – It is very important that this arrow is pointed in the right direction. To prevent a filter collapse it should point towards the system/fan. These are found only on our pleated filters.
- Additional notes:
- Fiberglass filters (without metal) do not have air flow arrows and will function regardless which side of the filter faces the system.
- Washable and/or Cut-to-Size filters must have the plastic grid between the filter pad and the motor/system. In other words, the air flows through the filter pad and then exits out the grid side.
Why do some filters don`t have an air flow arrow?
- Only our pleated and washable/reusable air filters have air flow directional arrows.
- Fiberglass air filters do not have air flow directional arrows since it does not matter which side of the filter the air flows through.
- See “How Do I Install My HVAC Filter?” for additional details.
How often do I clean a washable filter?
- We recommend washable/reusable filters be cleaned monthly.
- Regular cleanings of the filter media are required to prevent the filter from clogging and to prevent equipment malfunction or damage.
- Be sure the media is completely dry before reinstalling the filter in your system.
- Specific cleaning instructions are on the product label.
How do you select an air filter?
- If you are interested in only protecting your HVAC system while minimizing strain on the system, then you can focus on lower MERV rated filters.
- If you have a member in your household that is sensitive to airborne allergens or that may have a medical condition that will be agitated by dust, pollen, and other airborne particles then you should shop for a filter with a higher MERV rating.
- You could also consider alternating the levels of filtration seasonally to help save on money. Install higher MERVs during pollen season and lower MERVs when pollen is not in season.
How do I use coil cleaner?