Drugstore.com takes up to 50% off CHI Products. This CHI Pro Low EMF Professional Hair Dryer with Diffuser lowers from $169.99 to $89 with free shipping. Use this $10 off coupon to drop it to $79, the lowest price we could find by $21. The 19 reviews so far give it a 4.5-star rating. This hair dryer is designed for professional salon use and it features 2 speed settings to dry hair faster. There is no tax (except in IL, NJ, NY, and WA).