Rubber yoga mats are great for working out on, as they cushion the floor for you and can be cleaned fairly easily. When you first purchase one however, you may notice that the smell of rubber is quite powerful. This can be distracting, especially when you're involved in a meditative workout like yoga. The smell will fade away naturally on its own, but there are a couple of things you can do to help speed up the process.
Create a solution of one to two per cent Pine Sol or Murphy's Oil Soap -- or their generic equivalents -- in a bucket of warm water. It requires only a couple cap fulls of the cleansing solution to a small bucket of water.
Mix the solution until it becomes sudsy, then use a new sponge to spread the solution around your yoga mat. Make sure to cover the entire surface.
Rinse the mat off with a hose, then leave it outside in direct sunlight for a few hours. Even if the mat is dry, continue to leave it out there, as the sunlight will help rid the mat of its overpowering rubber smell.
Ventilate the room you workout in as much as possible. Open windows and doors, or turn on a fan.
Repeat the cleaning process a couple times a week until the smell is gone.
Leaving the mat in the sunlight for an excessive amount of time may lead to its colour being faded. Bring the mat in every couple hours to see if the rubber smell has been reduced enough for you. It won't hurt the mat to have its colour faded, but it might look less appealing.