Bosch Air 4000

Before you buy, compare it with 2 recommended alternatives

Beside it, two models on sale today that come closest to it on score and price, for the same room size where we have them.

Bosch Air 4000 195 € Clean Air Optima CA-503 Compact 132 € Xiaomi Smart Air Purifier 4 Compact 189 €

	This model Bosch Air 4000	Higher score, 32% cheaper Clean Air Optima CA-503 Compact Best on 3 facts	Higher score, 3% cheaper Xiaomi Smart Air Purifier 4 Compact
Price and ranking
Lowest price	195 €EURONICS	132 €OTTO best	189 €OTTO
Score	not in our ranking	best
Rank	–	rank 1 of 1 for small rooms	rank 3 of 3 for medium rooms
Customer rating	–	–	–
Room size
Room size	–	small roomsup to 30 m²	medium roomsup to 27 m²
Size, noise and age
Height lower is better	–	27.4 cm best	35.5 cm
On the market since	–	August 2023	September 2022

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Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.