Physical product redesign: rethinking the ceiling fan for a user group you choose
Company: Google
Role: Product Manager
Category: Product Design & Strategy
Difficulty: medium
Interview Round: Other
You are a product manager asked how you would redesign the ceiling fan. Choose who you are designing for and where the fan is used, work out what today's fans get wrong for them, propose and prioritize changes, and explain how you would know the redesign succeeded.
```hint Live with the fan for a day
Follow one person in one room through a full day and night, and note each moment the fan fails to keep them comfortable or asks them to do something.
```
### Clarifying Questions
- Is the fan meant for homes, or for shared spaces such as classrooms, offices or restaurants?
- What should the redesign improve most: comfort, energy use, noise, ease of control, looks or durability?
- Is this a product a fan maker will sell, and if so, at roughly what price compared with today's fans?
- Must it install on existing ceiling mounts and wiring?
### What a Strong Answer Covers
- A chosen setting and user group, with the reason for the choice
- The job a ceiling fan does for that user and the pain points across their day or night, ranked
- Ideas compared on explicit criteria, including unit cost, installation, safety and energy use
- Physical-product realities such as retrofitting into existing homes, lifespan, maintenance and certification
- Success measures and a plan to validate the design before committing to manufacturing
### Follow-up Questions
- How would you test the redesign with real users before paying for production tooling?
- What would you cut if the fan had to sell at close to the price of a basic model?
- If you had designed for the other setting (homes versus shared spaces), what would change first?
Overview: A product design prompt about how you would redesign the ceiling fan. It tests choosing a user and setting, identifying what today's fans get wrong, weighing ideas against unit cost, safety and installation limits, and planning how to validate the redesign before manufacturing.