Through Michael Grullon

The Fortnite team introduced a new hotfix in Fortnite on January 4th: Battle Royale. The update went live at 9 a.m. ET and introduced a new healing item into the game: the shield sprinkler.
The Shield Sprinkler is the perfect addition to Med-Mist, which was introduced with Update v19.00, according to the Fortnite team. Instead of spraying your allies with med-mist to restore their health, you can now throw down the shield sprinkler to restore the shields of your entire squad. The barrel will flood your team with enough health to completely fill their shields. How to use the new shield sprinkler in Fortnite.
Do you have light frostbite?
The new Shield Sprinkler item has your back! Just throw down the sprinkler to restore health to you and your allies. pic.twitter.com/qgpMNSQNoc
– Fortnite (@FortniteGame) January 4, 2022
The Shield Sprinkler is very easy to use. When you have it equipped, just toss it like a grenade near you and your squad and it will start distributing health to all of you. You can wear two at the same time and in total according to Fortnite Content Creator HYPEX on Twitter, it should heal a total of 150 health in 30 seconds and heals two per half second