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FIlter-Guru Monthly Blog

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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Help the Environment and Your Wallet!

Posted by Erik Sternberger at

We've talked about how often you need to change your filter, but what if you could just wash your filter? Yeah, I said, "wash it".Now, before you go take a power-washer to your ez-pleat or HoneyBear filter, please read on.The Ever-Flow® Lightning® Mechano-Static® Lifetime MERV 8 Air Filter is a lifetime filter that replaces the need to change out your filters saving you money in the long run, and a whole bunch of filters or several trips to the store (or the internet. *cough* filter-guru.com *cough*). All you have to do is take it out in the yard—or if like most of us, you...

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When to change your filter

Posted by Erik Sternberger at

The experts say that you should change your filter roughly every 1-3 months, which is a pretty big window. Speaking of windows if you keep your windows open or closed also factors into when you should change your filter. We all know why we change filters, but just as a reminder: Furnace efficiency - Your furnace doesn't have to work as hard to push air through, which leads to... Cost savings - Less energy all around brings your bills down, so maybe you can add a degree or two when you're cold without your house's thermostat administrator (Every household has one!) blowing a gasket.  Better...

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