Oasis HH Combo OH-30 Humidifier-Hygrometer<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Offers single-unit humidifierhygrometer combination Includes adjustable humidification settings Allows for user re-calibration of hygrometer Maintains humidity for 15 days or more before needing to be recharged Has a drip-resistant polyvinyl acetate sponge which holds 1x its weight in water </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41OwFlZBLmL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41zuZClemDL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41UZqvj4pbL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/514lXcgB6tL.jpg" noproxy>