NeloodonyDirect-US via Amazon offers the Neloodony 450ml Essential Oil Diffuser for $17.49. Coupon code "4JCIDX62" cuts the price to $10.49. With free shipping for Prime members, that's $12 less than what most third-party sellers charge, although we saw it for a buck less in June. It features auto shut-off, four timer settings, and eight color LED lights. Deal ends August 15.