About this item
Additional product information and recommendations
Related Categories
Discover more options
Frequently bought together
Guests also viewed
Guests are saying
The Filtrete Basic Dust and Lint Air Filter 300 MPR is appreciated by guests for its affordability, quality, and efficiency in filtering dust and lint. However, some guests reported issues with the size and durability of the cardboard frame. It's recommended for those with allergies and is considered a good value for money.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.6 out of 5 stars with 480 reviews
quality: 4.22 out of 5
value: 4.33 out of 5
89% would recommend
68 recommendations
1 out of 5 stars
19 January, 2026
originally posted on filtrete.com

Waste of money
The carcboard frame and the material used to enforce the filter are subpar. After several weeks, especially as furnace is used more due to colder weather, they collapse inward and become useless. Doj't waste your money.
3 out of 5 stars
24 February, 2025
originally posted on filtrete.com

Current product quality has fallen.
My home uses return air filters 20x20 and 24x24. I've been buying 20x20 MPR 300 and 24x24 MPR300. After my last purchase of 24x24 pack I too thought the 'air direction arrow' was backwards by mistake; I called in and was advised that the arrow was indeed correct. I take issue with that, especially on the 24x24 with all the cardboard 'crisscrossing' in addition to the new 'plastic wire' net all on the intake side. That's a lot blockage of air flow. You shouldn't need the cardboard strips and crisscrossiing with the polypropylene net The 20x20 had much less reinforcement so the airflow is much better but the cardboard filter frame comes apart.
1 reply from 3M-Filtrete team - 1 year ago
Thank you for leaving your review. We are sorry to hear this and would not have expected the product to be as described. If you need any further assistance, please connect with us directly at 1-800-388-3458 Monday-Friday 8:00am-4:30pm CT.
4 out of 5 stars
17 December, 2024
originally posted on filtrete.com

Good low cost filter to change often
This is a low cost Merv 5 (out of 16) filter, I change it about every five weeks during our Colorado heating season. My theory for filter maintenance is to use low cost filters and change theme often. The furnace runs fine (moves plenty of air) with this filter and a 5 week change cycle seems to work well.
4 out of 5 stars
Thumbs up graphic, would recommend
22 November, 2024
Clean air, clean home!
A great filter for the home. This filter lasts an appropriate time prior to needing to be changed again!
5 out of 5 stars
24 September, 2024
originally posted on filtrete.com

Great purchase!
Great product. If you have a dog, thus filter works very well.
3 out of 5 stars
Thumbs down graphic, would not recommend
15 April, 2024Verified purchase
Air filter
Wasn’t my usual brand
5 out of 5 stars
Thumbs up graphic, would recommend
11 April, 2024Verified purchase
Good filter
This filter works well, provides great air flow to keep your hvac unit working smooth for a reasonable price.
5 out of 5 stars
31 March, 2024Verified purchase
Great filter
Does the job like any other air filter I’ve bought.
1 out of 5 stars
Thumbs down graphic, would not recommend
25 March, 2024Verified purchase
Strong Odor
Two (at least) bought recently that smelled like they had been in a car mechanic's shop absorbing grease, metallic odors, and exhaust. Not acceptable!
1 reply from 3M Social Engagement team - 2 years ago
Thank you for leaving your review. We are sorry to hear this and would not have expected the product to be as described. If you need any further assistance, please connect with us directly at 1-800-388-3458 Monday-Friday 8:00am-4:30pm CT.
1 out of 5 stars
23 March, 2024
originally posted on filtrete.com

Social care is incorrect
Support screen on the WRONG SIDE when I bought the 300 last year. I installed it MY way , worked great This year the support strands are on the CORRECT SIDE. You fixed the problem. Now tell people the truth.
1 reply from 3M-Filtrete team - 2 years ago
Hello, thank you for taking the time to leave your review. Your feedback is very important to us, and we will be sure to forward your comments. If you have any additional feedback or questions, please feel free to reach out to our team at 1-800-388-3458 Mo-Fri 8am-4:30pm CT.
5 out of 5 stars
Thumbs up graphic, would recommend
28 February, 2024Verified purchase
Great air filter
So glad to find this hard to find size. Works perfect for my house. Excellent price too.
5 out of 5 stars
Thumbs up graphic, would recommend
15 February, 2024
Great filter
It’s easy to install and lasts us about 4 months
5 out of 5 stars
Thumbs up graphic, would recommend
14 February, 2024
Furnace filter
Awesome filter fits perfectly in the slot , good quality
5 out of 5 stars
Thumbs up graphic, would recommend
20 January, 2024Verified purchase
Good value
Affordable and lasts 3 months.
3 out of 5 stars
Thumbs down graphic, would not recommend
25 August, 2023
Not thd size i requested
The item is good quality but it’s not the size I needed..
5 out of 5 stars
20 May, 2023Verified purchase
Works for me!
Price is great and so is the brand, Filtrete.
5 out of 5 stars
Thumbs up graphic, would recommend
13 March, 2023Verified purchase
Filters
Filters as described
3 out of 5 stars
11 March, 2023
originally posted on filtrete.com

Mrp 300 is a good choice.
I just bought the mrp 300 because I wanted some air/dust filtration combined with optimal air flow draw from our furnace blower minimizing electrical draw to help keep our high efficiency furnace functioning properly to reduce our electric bill. Contrary to higher mrp rated filters that blowers weren't designed to draw air through causing our blowing to draw more wattage. So far the filter seems to be filtering/functioning as expected.
1 reply from 3M-Filtrete Care Team team - 3 years ago
Hello, thank you for taking the time to leave your review. Your feedback is very important to us, and we will be sure to forward your comments. If you have any additional feedback or questions, please feel free to reach out to our team at 1-800-388-3458 Mo-Fri 8am-4:30pm CT.
4 out of 5 stars
4 January, 2023Verified purchase
Good filter
The price and quality is good, but only gave it 4 stars because it is just ever so slightly not squared and so makes a bit of a squeaking noise when the furnace or AC turn on.
5 out of 5 stars
Thumbs up graphic, would recommend
19 November, 2022Verified purchase
Awesome
Basic. But just what I needed. Great price