Filtrete 12x24x1 AC Furnace Air Filter, MERV 12, MPR 1500, CERTIFIED asthma & allergy friendly, 3 Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4-Pack (Actual Size 11.69 x 23.69 x 0.78 in)

After moving into my house 2 years ago, I had the crawlspace and attic encapsulated and insulated, followed by installation of an energy recovery ventilation system and sealing of the baseboards of all outer walls. The HVAC consultants who did this work explained that my house is now extremely “tight,” i.e. the ERV brings fresh air and exhausts stale air out, and the house no longer leaks air. The last thing I want to do is upset the air pressure by choosing the wrong filter after the complicated renovations. Thus I tried the Filtrete 1500 because the top reviewer for this product said it had the lowest pressure drop.I think the Filtrete 1500 works as well as the Filtrete 1900 and Filtrete 1200 with charcoal in my house (I rate them all a 5), but no filter has been as important as frequent vacuuming. I use a Miele vacuum cleaner throughout the house once a week, then use a Swiffer WetJet on the hardwood floors. I also vacuum the curtains and baseboards about once every 2 months. If you do this consistently, dust bunnies never have a chance to form, and the air that recirculates in the house gets cleaner and cleaner over time. The extra house work pays off in better health and lower costs. After 2 years of this cleaning routine, my allergies improved so much that I stopped using antihistamines, and filters easily last 3 months.

Ordered these in Sept. so that when my current supply of filters was done I had them ready. By the time I installed one, Feb. 15, 2020, it was too late to return them so maybe this review will save people some money. Immediately after replacing an older filter (not the same type) I began having furnace problems. Furnace blower would run but cool air was being blown out vents. I called my furnace guy, who I have relied on for over 20 years, and over the phone he told me to take the filter out and run without filter until he could get there the next day. Furnace ran just fine once this filter was out. Next day he stopped by to check out furnace and took a look at filter. He told me to throw them out they are so dense it is like putting a sheet of cardboard in filter slot. Now using basic filter which is much cheaper and can replace more often. The density of the filter prevents some furnaces from firing up, not enough air flow. For some people this may not be the issue if their furnace is newer, but if you have an older furnace then you may want to consider a different type of filter. Too late for me but maybe this will help someone.

Filtrete filters are not the cheapest alternative out there, but they are all I buy. Filtrete has filters with varying degrees of filtration and clear explanations of the difference in quality. If you just need to filter out dust and don't need to worry about allergens, the filter grade lets you choose the cheaper filter. On the other hand, if you do have to be concerned about allergens or bacteria and viruses, you can find the filter you need. The filtration levels are matched by price levels, but you know what you are getting. With many brands, you get a filter, but you do not really know the quality of the filter.

We have two German Shepherds and one blue tick beagle/hound. Daily chores include vacuuming (requires dumping bin twice full of dog hair, 1/4 cup of dust in bottom). We have to change ours WEEKLY.If you don't want your house smelling like the pound (your nose adjusts if your homeowner, guests notice), or sensitive sinuses/allergies like myself- you'll want these filters.They capture so much from the air. The DRAWBACK is the price. And if you have dogs like I do, these filters get black QUICK. We have to change ours every 5-7 days during the summer/winter months when unit is flowing air the most. We also have a air purifier in the room that helps.I hate the price but I've tried lesser quality or less rated and it just doesn't do the job. So we just have to pay up as cost of owning dogs!

Installed new A/C and learned that 13 is the way to go if you never want to have to clean your A frame Condenser (which is not cheap or easy) Change every 6 weeks or a 100 hrs on the Filter monitor my Thermostat has. I bought these due to being stamped and each filter had markings of mpr 1500 which is about the same as a 13 rating. I needed them to compare to a subscription service that sends them which did not have a marking on the filter only the box they come in, Generic, (cheaper) but I live in a world where elections are fixed and legislation is for the poor. So I used the box instead of being a mooch and sending back after comparison. These are better price than the large hardware stores we got to choose from

This filter sounds good in theory, but there are times when I notice that the app hasn’t connected to the filters in weeks, despite being home all the time with Bluetooth enabled on my phone. The app said I had about 50% life left on my filter, but I thought I would change it anyway. Good thing I did because that’s the dirtiest I’ve ever seen any of my 7 air filters. So, instead of using this filter and depending on the app to tell me when it needs to be changed, I think I’ll switch back to a regular filter setup in Subscribe & Save to be delivered every other month. Whenever they arrive, I know it’s about time to change them. Hopefully they get the kinks worked out with this since it’s such a good idea. I have a feeling the app couldn’t connect to the filter because of all the dirt/dust caked onto it

I run the fan in my AC constantly. A few years ago my convection oven malfunctioned and set fire to what I was cooking. Luckley fire was contained to the oven. Smoked up the wall behind it, and the bottom of the cabinets above it. Left a great oder in the house even after moving the oven outside. I then noticed their was no smoke evidence from my air registers. The filter caught all of it. Replaced it and within a short time the oder was gone. I won't be without them.

We have an asthmatic in the house so we try to make sure the air is extra clean. MPR 1500 does a good job on this, although MPR 1900 would be even better. I find the cost high, but 3M quality is reliable.

The price should have been cheaper. After all, delivered home took so long!

Perfect size. Use only Filtrete for my home. Will continue to order!

It's working great to reduce the amount of dust in our house. The product says it can last up to 3 months, but it seems like we need to change it every month or 1.5 months -- which isn't a big deal for us.

Llego en excelente estado