Diffusers S-Zen Pro Diffusion up to 100 M³. Sound volume: <30dba Reservoir capacity: 100ml. Works on battery or 220V Placed on the ground or suspended (wall) Customizable design/graphics. M-Zen Pro Diffusion up to 350 M³. Sound volume: <30dba Reservoir capacity 200ml. Placed on the ground or suspended (wall) Customizable design/graphics. L-Zen Pro Diffusion up to 1000 M³. Sound volume: <30dba Reservoir capacity: 500ml. Works on battery or 220V Placed on the ground or suspended (ceiling or wall) Customizable design/graphics. XL – Zen Pro Diffusion up to 3,000 M³. Sound volume: <35dba Reservoir capacity 500ml. Placed on the ground Customizable design/graphics. XXL – Zen Pro Diffusion up to 8,000 M³. Sound volume: <65 dba Tank capacity: 5000 ml. Placed on the ground For bigger spaces, please contact us. * Informative characteristics, not contractual