The blog · Cordless Vacuums
Cordless Vacuums guides & deep dives
Every cordless vacuums article from PickGrade — buying guides, how-tos, and research notes.
July 9, 2026 · Dr. Yocheved Yorkovsky
How Long Do Cordless Vacuum Batteries Last, and Why It Decides What to Buy
Every cordless vacuum battery fades in a few years. Whether you can replace it, or have to throw out the whole vacuum, is the biggest hidden factor in what a cordless vacuum really costs.
July 9, 2026 · Dr. Yocheved Yorkovsky
Sealed HEPA vs a HEPA Filter: What Actually Keeps Dust Out of Your Air
Almost every vacuum claims a HEPA filter. Far fewer are actually sealed, and the difference decides whether vacuuming cleans your air or stirs it up. Here is how to tell them apart.
July 9, 2026 · Dr. Yocheved Yorkovsky
Air Watts, Explained: Why the Suction Number on the Box Lies
Peak air watts is measured at the motor with nothing attached, in a mode you will barely use. Here is why the headline suction number tells you almost nothing, and what to read instead.