Performance and filtration

What room size does the Philips AC4221/61 cover?
With a CADR of 600 m³/h, it covers rooms up to 1679 sq ft (156 m², NRCC) or 780 sq ft (72 m², GB/T).
How does the filtration work?
It uses four layers: a prefilter, HEPA NanoProtect and two active carbon layers. They capture 99.97% of particles down to 0.003 microns.
Is it quiet at full power?
Philips states that SilentWings keeps it quiet even on Turbo power. No decibel figure was supplied.

Smart features and everyday use

What does the air quality display show?
AeraSense tracks PM2.5, gas, temperature and humidity. A light ring glows blue for clean air and red as pollution rises, and the display shows an exact PM2.5 number.
What can I do from the Air+ app?
You can turn the purifier on or off, change fan speed, enable Silent Mode, set Child Lock and get filter alerts. The app also shows indoor and outdoor air quality, and Auto mode adjusts performance automatically.
What are the product dimensions and weight?
The purifier measures 285 x 285 x 520 mm and weighs 6.3 kg.
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Free returns within 10 days
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Free returns within 10 days
Everything Handled by Us
Free returns within 10 days
Everything Handled by Us