BMS Lifestyle BMS01-ilo Multi-Function Electric Rice Cooker, 600ml (Colour May Vary) Tower fans offer a superior amount of air flow in an incredibly compact unit. These fans distribute air at a 90 degree angle, oscillating on a stationary base. This combination of design creates an incredibly efficient and effective product. This tower design is also the most recognizable attribute: their shape allows tower fans to slide into spaces that would otherwise be unable to house a fan unit. Most models offer air ionization, giving the space a clean fresh feeling.