Humigel bulk refill kit (sufficient for 20 refills) We have heard from a good number of our Oasis humidifier users about not wanting the syringe, spoon or instructions from the OH-4 kit (art. nr. 40756). They own a lot of our humidifiers and just want the bulk crystals. OK, we hear you! The OH-4+ has no spoon, instructions or syringe, just sufficient crystals for 20 refills.