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Illustrated homeowner workbench with a cordless drill, impact driver, circular saw, jigsaw, and oscillating multi-tool

Home tool systems

The First 5 Cordless Power Tools for Home DIY

For most homeowners, the cordless drill/driver is the first power tool to buy. Add an impact driver when you regularly drive long or resistant fasteners, a circular saw for straight cuts, a jigsaw for curves and cutouts, and an oscillating multi-tool for flush cuts, plunge cuts, scraping, and tight repair work. You do not need all five immediately. Choose one supported battery platform, then add the next tool only when a real project justifies it.

Best fit
Homeowners choosing a first cordless platform or deciding which tool a real project justifies next.
Skip if
You need a hands-on review of one exact model rather than a source-backed category and buying-order guide.
Choose the first five tools
Dreame AirPursue PM20 air purifier, fan, and heater

Indoor air

Dreame AirPursue PM20

The PM20's published 400 m³/h particle CADR converts to about 235 CFM. That is substantial clean-air airflow for a portable purifier, but CADR is more useful for sizing than a headline square-foot claim. Using the U.S. EPA's current CADR sizing table as a reference, 235 CFM falls between the 300 square foot and 400 square foot entries, which is roughly a 360 square foot reference at an 8 foot ceiling by interpolation. In a 300 square foot room with an 8 foot ceiling, the same CADR is about 5.9 equivalent air changes per hour. In 500 square feet, it is about 3.5.

Best fit
A roughly 300 to 500 square foot living area where particle filtration matters and the combined purifier, directed airflow, sensors, and supplemental heat are useful.
Skip if
You are choosing mainly from the largest square-foot coverage headline, need a high equivalent air change rate across a very large open area, or want a simpler purifier with lower complexity and potentially lower ownership cost.
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