Philips AC4221/11 (156 m²)
CHF290.–

Philips AC4221/11

156 m²

Questions about Philips AC4221/11

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Agron_Veseli

11 months ago

what is the difference between this air purifier and the AC4236/10 from philips?

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umbrunner

11 months ago • purchased this product

purchased this product
Helpful answer
As far as I know, the AC4221/11 appliance is the successor model to the AC4236/10 appliance. The AC4236/10 model has been sold in Switzerland since January 2020, the AC4221/11 model since January 2025. The cleaning performance of the newer model is said to be slightly better, but the filters, which have to be changed annually, are more expensive than those of the predecessor model. https://www.heise.de/bestenlist... See also toppreise.ch: There you can check how long a product has been available.
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Chris. P. Bacon

1 year ago

Can this model also be controlled via the app?

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digitec

1 year ago

Helpful answer
Yes, the model can be controlled via the app. The Philips Air+ app allows you to create schedules and set different operating modes.
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traugottle

1 year ago

Is a nitrogen dioxide (NO2) sensor installed in the device? How quickly does the automatic mode react to detected pollutants (if at all)?

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digitec

1 year ago

Helpful answer
The air purifier does not have a specific nitrogen dioxide (NO2) sensor. However, it uses a double layer of activated carbon that can reduce nitrogen dioxide. The automatic mode reacts quickly to detected pollutants, as the sensors analyse the air quality 1,000 times per second and adjust the purification stages accordingly.
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