Pick the Right Air Purifier for Your Room Size
Measure first. Buy once. Breathe easier.
Wrong size = wasted money
Too weak, and it runs flat-out all day. Too big, and you pay for power you never need.
Step 1: Measure your room
Length × width = square feet. A 12 × 10 room is 120 sq ft. Write it down.
Step 2: Match the coverage rating
The rating on the box should meet or slightly beat your room size.
Step 3: Check CADR
Higher CADR = faster cleaning. It can run quieter, on a lower setting.
Pro tip: HEPA + carbon
True HEPA catches fine dust and smoke. Carbon handles cooking smells.
Don't ignore the noise
Check decibels at the lowest speed — that's what you'll live with all night in a bedroom.
Price the filters, not just the machine
In dusty cities, filters may need changing 3–4 times a year.
Give it room to breathe
A tall slim tower fits between furniture. Never hide it behind a curtain or under a desk.
Read the Guide
The full step-by-step guide — compare your shortlist side by side before you buy.