If you are chasing Humidifiers in ARC Raiders, start with Buried City and move fast. That's where the most reliable loot path sits, and it lines up neatly with the rest of the ARC Raiders Items grind. The Red Tower near Plaza Rosa is the spot most players talk about, mostly because one of the red lockers there can spit out a Humidifier before anyone else gets there. It is not fancy. It just works, as long as the place has not already been cleaned out.

You will usually get the best results by entering, checking the second-floor lockers, and getting out. Some players reach the tower through a hole in the building, then sweep the inside lockers and a Security Breach locker too. That route is quick, and the Metro extract being so close makes it even better. The downside is obvious. Everyone knows about it now, so if you arrive late, there is a good chance the loot is gone and you are just staring at empty storage.

That is when you switch maps instead of forcing it. Dam Battlegrounds is the usual fallback, with Pale Apartments and Ruby Residence giving you a decent shot at Residential containers. You will want to check cupboards, kitchen cabinets, drawers, shelves, backpacks, and suitcases. Nothing glamorous there, but it adds up. Buried City still gives you more focused runs, yet Dam Battlegrounds can feel better when the competition is lighter and you are tired of racing other players to the same lockers.

There are also a few other places worth a look, like Grandioso Apartments, the Library, and even some house interiors off the broken highway. They are not guaranteed, so do not treat them like the Red Tower route. Think of them as extra chances while you are already moving through a Residential zone. Humidifiers are rare, and that is really the whole story. You need five for the Caravan Expedition's Outfitting step, so most people are not hunting for one lucky drop. They are trying to build a small stack and leave the raid with enough to keep the project moving.

Most players keep at least the five they need, then decide from there. Humidifiers are rare, weigh 2 kg, and stack up to 3, so they do not eat your bag space too badly. If you pull extras, recycling them is usually worth considering because they still turn into crafting materials. The market value you might see floating around is not something I would lean on too hard. It changes, and sometimes it is just stale data anyway. In practice, the item matters more for progression than for trading.

If you want the cleanest route, do a Buried City run first, hit Red Tower, and extract immediately if you get one. If not, head for another Residential building and keep the pace up. That simple loop saves time and cuts the risk of losing the item on the way out. And if you are looking to round out the rest of your stash, you can always check ARC Raiders Items for sale after the raid and compare what you still need. It is a small thing, but it keeps the whole Expedition push a lot less painful.