The Environment Agency has previously conducted a test measuring the size of wood chip particles in the air, which came back well within the UK limit.

BBC: Wood dust protesters march from Mossley to Plevin plant

So these are some the key points in the long process of design development of an HTC phone, where engineers and designers push each other to uncomfortable realm, before eventually delivering the near-final product to Peter Chou for his ultimate test on the size, feel in hand, feel in pocket and even the ringtones.

ENGADGET: HTC talks smartphone design: from inception to final product

But the size of test centre sites made it difficult to reach the speed without accelerating unsafely, he said.

BBC: New motorbike test is under fire