Stop Wasting Money on the Wrong Air Purifier.

H13 is a medical-grade True HEPA filter class that captures 99.97% to 99.999% of microscopic allergens, dust, smoke, mold, pollen, and PM0.01 particles, whereas standard HEPA filters only capture PM0.3 particles.

Look at the coverage area listed in sq.ft. For standard bedrooms, a purifier covering 300 to 450 sq.ft (like Coway AIM or Levoit Core 300) is perfect. For large living rooms or office spaces, choose models covering 700 to 1,748 sq.ft (like Coway 200M or Airmega 250).

Most premium filters (like Coway Airmega or Philips NanoProtect) have a long lifetime of 8500 to 9000 hours, which translates to roughly 1.5 to 2 years under typical daily home use. Check your unit's filter replacement indicator light for warning alerts.

CADR (Clean Air Delivery Rate) measures the volume of pure air a purifier delivers per hour. A higher CADR rate (e.g., 420 m³/h on Philips AC2220) means the purifier can recycle and clean all room air faster (ACH rating), which is vital for high pollution regions.

No, air purifiers are highly energy efficient. Standard bedroom purifiers consume only 30W to 50W at maximum speed, which is less than a ceiling fan. Smart ECO modes also auto-stop the fan when air is completely clean, saving additional power.