No absolutely not. No inline filter. But it does depend on what you intend smoking down your Hookah hose. Although the water temperature surrounding the hose rig can be used to your advantage in cooling the contents however sadly the type of particulate filter fitted inline in the hose as you suggest will by its very nature fail.I'm putting together a dedicated SNUBA Hookah hose rig that will use a tank on the surface for air. If I'm using a tank, do I need a filter inline in the air hose? Thanks.
Further filters of this type (inline) will only collect the particulate and over time this at best reduces the flow up to the point of clogging.
The first of two important safety components you will need however is a non return valve fitted at the end of the hose nearest to where you are in the column of water. This acts as protection in the event the surface cylinder hose from the reducing regulator bursts at the surface creating a vacuum down the hookah hose. Choose the type of hose carefully.
Remember a hose at the surface gets very hot soft and pliable from the sun while the hose in the water is being cooled by the sea temperature and the hose can be hardened and brittle over time especially the cheap crap PVC imported junk hoses sold by the rinky dink scuba dive web sites. Conversely the type and method of crimping the hose to the 7/16 UNF 1st stage regulator fitting also needs careful consideration be it swaged pallet swaged or crimped.
The pressure differential of surface ambient pressure to depth pressure will act as a massive vacuum suction to the diver if at depth hose line pressure is lost by a burst hose at the surface. This will result in a rapid suction action reversing the gas flow from the divers depth end back up to the surface while the water pressure crushes the hose. Now in principle when this happens and you don't have the correct type of non return valve fitted at the divers end the 2nd stage box bottom exhaust valve will at some point invert and get sucked in or the front diaphragm inverts and is sucked inside However its the weaker human lung function capability to protect itself from even a small pressure differential loss hence why you never see a 3 foot long snorkel that is the concern. At this point not only have you lost your last breath but you have damaged lung function and together with the sudden onslaught of a vacuum you have zero time react. Consider your hose type brand material and internal diameter very carefully and the fittings type and method of attachment. Take greater care on the type and spring pressure of the non return valve.
Loss of lung function at depth is interesting. We all know about the nemesis condition of a spontaneous Pneumothorax leading to an arterial gas embolism and its chamber treatment protocol although on the couple of times I've seen one they never needed a chamber treatment. I'm just not sure what treatment table you would use for a diver presenting with a serious opposite vacuum condition does his lungs dangle out his mouth if so maybe a local embalmers with a bucket to spare would be helpful I guess.