A monthly figure is only one part of the commitment.
Ask for the complete quotation
Request every payment phase, obligation period, upfront fee, refundable deposit and excluded cost. Do not multiply one promotional monthly price across the entire contract.
Compare like-for-like service
Service options and intervals depend on the model and plan. Ask who performs servicing, what is included, and how extra filters or later service costs are handled.
Read before signing
Request written warranty, early termination, relocation and end-of-contract terms for the exact plan. The official product page is a starting point; your confirmed agreement is essential.