Filter replacement watchdog
Your filters have a real replacement cycle. Retailers want you to ignore it.
We track MERV ratings, fridge filter part numbers, and whole-house cartridge pricing — then map honest change intervals for allergies, pets, and dusty climates so you stop over-buying and under-changing.
- ✓ Editorially reviewed
- ✓ No pay-for-placement
- ✓ Affiliate disclosed
EDITORIAL · TESTED
Photographed by editorial team
Tested catalog
3 products
Independent reviews · published prices · real ratings
Editorial standards
“No pay-to-play from filter brands. Affiliate links only on picks we would install in our own homes.”
How we work →Start here
Four pillars, dozens of guides — answer the question you came with first.
Each pillar opens a curated path: explainer → testing notes → product picks. Built so you land on the right shelf in three clicks.
Tested this season
Top picks at three price points, side-by-side.
Same testing rig. Different budgets. Below: the verdict for buyers, splurgers, and the people who want the cheapest defensible answer.
How we tested: 30-night minimum on every pick, raw data and test rig published on the methodology page.
See the test rig →Latest from the desk
Six things we published recently.
About the desk
Why FilterCycle exists
We built FilterCycle after a stack of "replace every 30 days" emails that did not match how dusty the house actually was — or what the pressure gauge on the furnace said. We publish interval math, part-number crosswalks, and subscription comparisons so you spend less on filters and breathe better air.
Articles published
3
All bylined, dated, reviewed quarterly.
Products tested
3
Independent reviews — every price disclosed.
In-depth guides
2
Pillar topics, updated as the field changes.
Stay in the loop
The FilterCycle weekly
Practical picks and straight answers from FilterCycle, once a week. No spam.
Newsletter signup coming soon.
Standards, disclosures, and how we make money.
Affiliate-link disclosure, testing protocol, conflict-of-interest policy, clinician contributors, and our correction log. All on one page. Read before you trust the rest.