is a merv rating of 8 better than an 11
1742741
I was told by the HVAC guy that you want to use a lower merv in the summer with air conditioning, to facilitate cool air movement; and a higher merv in winter, to capture dust and allergens from recycled indoor air. I use a 6 average merv in summer, and 10 or higher in winter.
1742742
I did a search on the internet and found this link: http://www.filters4life.com/What-is-MERV-rating-s/4961.htm . It give information from 1-16 and gives a color guide of red for the lowest, yellow, light green and darker green for the best. This indicates that 11-16 is in the darker green, with 16 cutting 95% of the dust and allergen particals. I'm glad you ask because that give me a better ideas of what I'll want the next time I purchase.
1742743
Yes and No.The higher the Merv rating, the more strain you will put on your furnace/blower. The more denser (Higher Merv rating) the filter, the more your blower motor will have to work. Of course, you will pull out more particles/dust/pollen etc out of the air, with a higher Merv rating. I have a variable speed blower motor/fan, so my Hvac technician can adjust my blower/fan speed. For my house, approx. 1600 sq ft, I found the Filtrate 1000 (Approx Merv rating of 11) to be ideal, with my two cats. I also buy charcoal pre filters here on Amazon and use them with my filter. They also tend to pick up a lot of stuff out of the air. I then vacume both the filter and pre filter (with a Hepa vacume cleaner) at least twice a month. I then change my furnace filter every 4 to 6 weeks-even though the filters would be good for at least 90 days. This may be considered excessive but my Hvac tech states my coils are always clean and the house is cool/warm when I want it. Next time your Hvac tech is at your house and servicing your system, ask him/her what they recommend.
1527987
Probably. The only difference I have found is the Ah rating, so I would certainly try it.
475782
I would put the numbers close to 8 to 9 for both. I can' find the ratings online anywhere but I would just keep checking back here just incase someone else does. :) I do know that the paddle is a 6 star paddle if that gives you any help.
1282149
I would say an 8. It is spicy but not very very spicy. Its nacho. So if you had nachos at a game or anything I'd compare it to that.
1460572
The MERV rating is 11. The MPR rating is 1100. An MPR range of 1000 to 1500 is within the 11 MERV rating. I found this information on the Filtrete website.
911840
It should not cause a problem with the furnace, MERV 11 is a higher rating for trapping particulates. See this site http://www.filters4life.com/What-is-MERV-rating-s/4961.htm among others for a better idea.
1796259
if it isn't it is as good as 18/10! I am pretty sure it was advertised as being 18/10 but when I just checked the bottom of my boilers it doesn't specify.I have hadmy set for 3 years and have since purchased an additional set for myself and 2 sets for my daughter.
1864290
I would say a 8-9 at first. It gets a lot better with continual use and getting used to it. I would say it's a 3-4 for me on pain now.
1216958
The AH rating is a measure of how long the battery will last, i.e., its capacity. As long as the voltage matches this will work. If your present battery is a 5Ah battery and you replace it with a 4Ah battery, the battery will expend its charge slightly faster than if you had a 5Ah battery. Likewise, it you installed a 10Ah battery, it would last twice as long as the 5Ah battery. FYI, typically the price of a higher Ah rated battery, the more the cost.
525272
I'm 5-10 but I honestly do. not think it matters. very good value and happy with the quality. hope that helps
1876122
you would be better off with next unit up which is the 7-8.The 4-5-6 is not heavy enough.
943483
We tested it at the beginning of use and it was an 8. I haven't tested it since. By the way, my friend uses prill beads in a beverage dispenser (those big glass ones with the little faucet) and had the same rating of 8.
1779605
In a nutshell, filtration efficiency. Merv 8 removes particles sized 10 to 3 micrometers, and is considered Better filtration. Merv 11 removes particles sized 3 to 1 micrometer and is considered Superior filtration. A HEPA filter removes particles 0.3 micrometers in size. HEPA filters are not efficient for home systems as they cost more energy to pass air through the dense filter. The best filter for home use considering removal of particle and energy cost efficiency is the Merv 11 filter. Our system was designed for Merv 11 as was our desire for an energy efficient filter with superior air filtration. It really keeps the dust low in the house with regular filter changes. In a nutshell, filtration efficiency. Merv 8 removes particles sized 10 to 3 micrometers, and is considered Better filtration. Merv 11 removes particles sized 3 to 1 micrometer and is considered Superior filtration. A HEPA filter removes particles 0.3 micrometers in size. HEPA filters are not efficient for home systems as they cost more energy to pass air through the dense filter. The best filter for home use considering removal of particle and energy cost efficiency is the Merv 11 filter. Our system was designed for Merv 11 as was our desire for an energy efficient filter with superior air... » Read More In a nutshell, filtration efficiency. Merv 8 removes particles sized 10 to 3 micrometers, and is considered Better filtration. Merv 11 removes particles sized 3 to 1 micrometer and is considered Superior filtration. A HEPA filter removes particles 0.3 micrometers in size. HEPA filters are not efficient for home systems as they cost more energy to pass air through the dense filter. The best filter for home use considering removal of particle and energy cost efficiency is the Merv 11 filter. Our system was designed for Merv 11 as was our desire for an energy efficient filter with superior air filtration. It really keeps the dust low in the house with regular filter changes. « Show Less
1637655
I can tell you its not over 4. No way is it 8. Nit mine anyway. Hope this helps.
512579
Mine is an 11 and it was a smooth installation. You probably would have the same!!
209838
I got 7.8. just keep in mind that the total score is equivalent to the least performing part
1050339
I don't see a "MERV". It says the rating is "1000 MPR" (micro performance rating). I believe when I purchased these filters I had googled the rating and read that the rating system had changed. Can't quite remember the particulars. Try googling? BTW - I swear my husband's breathing has improved since I started using these filters. He suffers from COPD.