It has been an unbearably hot summer so far around the world with heat waves scorching the Earth at almost every continent.Of course, humans are not the only ones uncomfortable because of the heat: Animals are agitated and unhappy as well, and just as likely – if not more – at risk of suffering a disease or injury. So, a clever Tokyo clothing maker has teamed up with veterinarians to create a wearable fan for pets, hoping to attract the anxious owners of dogs – or cats – that can't shed their fur in Japan's blistering summer weather.

The device consists of a battery-operated, 80-gramme (3-ounce) fan that is attached to a mesh outfit and blows air around an animal's body.

Rei Uzawa, president of maternity clothing maker Sweet Mommy, says she was motivated to create it after seeing her own pet chihuahua exhausted every time it was taken out for a walk in the scorching summer heat.

"There was almost no rainy season this year, so the hot days came early, and in that sense, I think we developed a product that is right for the market," she said.

After the rainy season in Tokyo ended in late June, the Japanese capital suffered the longest heatwave on record with temperatures up to 35 degrees Celsius (95 Fahrenheit) for nine days.

"I usually use dry ice packs (to keep the dog cool). But I think it's easier to walk my dog if we have this fan," said Mami Kumamoto, 48, owner of a miniature poodle named Pudding and a terrier named Maco.

The device debuted in early July and Sweet Mommy has received around 100 orders for the product, Uzawa said. It comes in five different sizes and is priced at 9,900 yen ($74).