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FIlter-Guru Monthly Blog

Scary Stuff

Posted by Erik Sternberger at

For the month of October, we want you to scare us! Tag us in pictures of your dirtiest air filters on Twitter @Unfiltered614 or by email @ info@filter-guru.com with the subject line "#Scary!". We'll post them here and the winner gets a code for a special discount on their next order! And yes, these top 2 belonged to someone here at filter-guru. He now knows better.

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Back to School

Posted by Erik Sternberger at

While your aquarium or pond might not have a large school of fish, it's a good reminder to think about them as we're hit with all the back to school advertisements. An easy way to do that is by changing out your filter media. Your filter does a lot of work to make your water breathable for your fish and to allow you to actually see them. Having to put your nose up against the tank is no fun, and no fun for the fish to be that close to our faces, either, I'd imagine! Your filter media works hard...

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Normally Nominal

Posted by Erik Sternberger at

We're going to talk about a lesser known part of buying a filter today: Nominal Sizing. What does that mean? It means your 20 x 22 x 1 MERV 11 filter is actually a 19.5 x 21.5 x 0.8 MERV 11 filter if you were to measure it. Does this mean you're getting less filter for your money or someone is cutting corners?* Nope. That is actually the real size your furnace needs!Filters aren't the only products sold this way. Have you ever measured a 2 x 4? Well, if you have, you party like we do and know they are actually...

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It's getting hot in here!

Posted by Erik Sternberger at

If you're like most of the United States, you're in the middle of a heat wave right now. If you believe in Murphy's Law, this means your air conditioning is just about to go out. Your AC is working hard right now, but one of the main reasons it goes out is because of something you forgot to do months ago. (Yes, we are talking about changing your filter, I mean, we ARE filter-guru.com.)  But, that's not all. Do you have ceiling fans? They don't just look cool but can help keep you cool. Okay, we apologize for that, but make...

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This is just a test.

Posted by Erik Sternberger at

All of our filters at filter-guru.com undergo ASHRAE Standard 52.2 testing, but what does that mean?"An air filter’s performance is determined by measuring the particle counts upstream and downstream of the air-cleaning device being tested. Particle counts are taken over the range of particle sizes six times, beginning with a clean filter and then after the addition of standard synthetic ASHRAE dust loadings for five additional measurement cycles."Okay, but is that the MERV rating?"An "overall" reporting value of a 52.2-evaluated air filter is the expression of the Minimum Efficiency Reporting Value (MERV). The MERV is a single number that is used,...

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