Here's another item that Lonnie Ritter can fix (along with the two Precious Mementos and Heavy Furs in this set), and in the two other factions likely to want the horror healing of Lonnie. But to get more uses of Protective Gear's ability, you'll need to heal the horror, too. That's a tougher task, since most card effects heal horror only from investigator cards or Ally cards. The exceptions are Ancient Stone, for which you'll need Seeker access, and Call for Backup, but for that one you'll need a Mystic card, too to do the horror healing. All of this points to just one investigator, Carolyn Fern, who can additionally run The Star • XVII to beef up this and Lonnie and just never die.
For other investigators looking to get extra uses out of this card, forget Lonnie, Call for Backup on its own will do the trick. This card already gives you the damage healing from being a Survivor card, you just need a Mystic card in play, too. Lily Chen and Diana Stanley don't need any more help since their investigator card counts. There's a good chance Sister Mary and Patrice Hathaway already have a Mystic asset out. For all other Guardians and Survivors, you'll need to run another multiclass card, which isn't a bad idea if you are playing Call for Backup anyways.
A more straightforward combo is just to use this thing up three times and pull it out of the discard. Anyone with Resourceful can do this, or anyone happy to take Scavenging like Minh Thi Phan or Agnes Baker.
Finally, the use of Protective Gear's ability depends on the campaign. A few campaigns so far have little to no specific Hazards. Canceling a Hazard usually lets you bypass an Agility test (sometimes a Willpower or Strength), but other times a nasty revelation effect.