The new BD Falcon™ Multi-Flask, a multilayer cell culture device, helps researchers scale up their cell culture more efficiently. Currently, most expansion of attachment-dependent cells occurs in single-layer flasks. The BD Falcon Multi-Flask, available in both three- and five-layer designs (525 and 875 cm2), simplifies cell culture scale-up by providing the same footprint, reagent volumes, and cell seeding densities per unit area as single-layer flasks but with three to five times more cell growth. The BD Falcon Multi-Flask also features the same tissue culture surface treatment as all other BD Falcon Flasks.