ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Custom Air Filters - Are They Necessary?

Updated on October 24, 2012

What are they?

They are a type of air filter that is used in an air conditioner or a furnace. Unlike the air filters that you can purchase at your local store, these air filters are made to an exact length, width and depth. The size that the filters are made too depends on where and how the filter is to be used.



Replacing your AC filter can save energy.
Replacing your AC filter can save energy.

Why are they needed?

Working in the air conditioning & heating industry for many years I can say one thing the industry never did was to standard filter sizes. Air conditioning manufacturers decide on the filter size based on the final size of the unit, So there are literally hundreds of different sizes of air filters. Then there are the filter-back return air grills, those are the big louvered grills in the walls that suck the air in. Return air grills can be made to any size, which means hundreds more filter sizes.




Who can benefit from a custom made filter?

Considering there are hundreds of different filter sizes, and most home stores carry less then ten different sizes. A lot of people. Most people just purchase a filter size that's "close" to their required size. So they get it home and either they have squeeze and bend it to get it in, or it slide right in because it's too small! In both situations you are causing yourself problems. Because air is funny, if it has a choice between resistance and no resistance, it chooses no resistance every time! This means if you air filter is not properly sized and sealed, all the air and pollution will just go around it, and avoid filtration completely. To make matters worse, some people purchase a high efficiency air filters, to get better filtration. But higher efficiency, usually means greater resistance, which only compounds the problem.




What are the results of poor air filtration?

When airborne particle are not trapped by your air filter they are able to enter your air conditiong system. Once inside your AC these organic and inorganic contaminants find the perfect wet dirty environment to thrive and multiply. Some very dangerous pathogens have been known to thrive in these conditions, such as Legionella pneumophila, E. coli and Bacillus subtilis. Once spores germinate and growth occurs in air conditioning unit or anywhere inside the building, new spores may be generated and appear in the return air.



Custom air filter types
Custom air filter types

What types are available?

Like the furnace filters you find at your local home store, there are many different types available. The first thing you should decide when you are going to order custom air filters is efficiency. Efficiency is how effective the air filter is at removing particles from your air. A common measure of efficiency of furnace air filters is called M.E.R.V.( minimum efficiency reporting value). The higher the M.E.R.V. rating, the more efficient the air filter. Keep in mind the higher the efficiency, the greater the resistance, so make sure you system can handle the extra load.

Filter media in different shapes as well, you have your flat type filter media, like fiberglass and polyester. Another type of media is the extended surface pleated type material. Air filtration media uses either mechanical or electrostatic methods of filtration. The electrostatic method offers the benefit of lower resistance to air flow.

One of the most important factors, and often overlooked, is an air filters ability to make a positive seal within the system it is being place. Without a tight seal, the pollutants will find a way to get around the air filter and avoid filtration. There are a few filters on the market that have a gasket on the filter to prevent air bypass. If you have to use duct tape to seal the filter so the air can't go around it, then do so.

Comments

    0 of 8192 characters used
    Post Comment

    No comments yet.

    working

    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, hubpages.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: "https://hubpages.com/privacy-policy#gdpr"

    Show Details
    Necessary
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
    Features
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Marketing
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Statistics
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)