The phrase "designed to be safe" is correct and usable in written English.
You can use this phrase when you want to describe something that was intentionally made for safety reasons. For example, "This product was designed to be safe and provide maximum protection."
Baxter (above) was designed to be safe, intuitive, and easy to program.
Generation-IV advanced nuclear energy systems are being designed to be safe and economical.
Traction shafts and axles of railway vehicles are designed to be safe and reliable in normal service conditions.
When SolarAid completes a solar installation, not only is the system designed to be safe, reliable and powerful, but SolarAid also trains local staff in how to look after it and really understand how each individual part works.
Twenty experienced yoga teachers from the British Wheel of Yoga and Iyengar Yoga were trained to deliver a beginner level course of 12 yoga sessions specially designed to be safe and beneficial to those with lower back pain.
In July I locked my bike at Cambridge station in Cycle Point, a new multi-storey park for bicycles that was designed to be safe and secure with more than 100 CCTV cameras.
These reactors generate 300 megawatts or less, about a third of what conventional nuclear reactors generate, and are designed to be safer and easier to manufacture.
The reactors are designed to be safer than previous models, incorporating advanced features to prevent core meltdowns and to withstand exceptional hazards, like earthquakes or the impact of an airplane.
Imara's products are based on patented materials that deliver the best combination of power and energy with long life and are designed to be safer for the environment than available alternatives.
These heaters used to get a bad rap because of safety concerns, but like many home appliances, today's models are designed to be safer and sleeker than the heaters of old.
