Japan is experiencing one of it hottest summers on record but even the national Cool Biz campaign, which dispenses with jackets and ties, is having little effect on comfort levels. 

The conditions have given rise to the sale of air-conditioned shirts with powered fans, which blow air into the shirt or behind the knot of a tie into the neck region. The products are powered by a USB port.

Made by Kuchofuku, the company has a wide range of products including jackets, trousers, white shirts and workshirts with dual fans that create constant airflow while seated in front of a PC. 

The shirts sell from JPY5,250 (US$45.6) while the fan-cooled tie is available from Kuchofuku online at around JPY3000.

By Michael Fitzpatrick.