I don't know how to make it heat yet. But otherwise, product is good! Nice! Great for clearing my sinuses!

It took me so long to get it. When I looked inside, I was surprised that it was so dirty. I tried to wipe it with water, but it didn't because it was inside, so I just tried it. It's steamy, but it works well. If it had been sold domestically, I would have returned it. Just write

Hot Steam Moisturizing Eye Mask For Tired Dry Eyes Relief Handheld Eye Care Mist Sprayer Nano Mister For Eye Care Holiday Gift