The advanced three panel design of the 9300 series means they are easier to breathe through and not prone to collapse foldable design offers more convenience than traditional cup shaped respirators headband material keeps a near constan t tension reducting strap pressure and ensuring secure fit 3m cool flow exhalation valve minimises heat built up improved comfort packed 10 ond688196 order fulfilment will take up to 3 days depending on the delivery location and is subject to stock availab