Does PestVault work in an RV that sits for weeks?

I use them in my truck camper that sits for a month at a time and I usually swap them every 3 weeks in the summer. The heat does seem to make the scent fade faster, I can tell when I open it up and barely smell anything anymore. Two weeks is probably fine but I wouldn’t push past three in a hot rig.

I’d be surprised if those pouches are doing much after a couple weeks in a closed up RV in summer. Heat and stagnant air are exactly what kills off that kind of scent product. I tried something similar in a detached garage and after like 10 days the smell was basically gone. RV interiors get way hotter than people think, like an oven. The fact that you haven’t seen mice doesn’t really prove they’re working either. Mice stay out of places for all kinds of reasons. If you’re relying on scent alone in that kind of heat, you’re probably better off just replacing them way sooner or using something that doesn’t depend on lingering smell. Sitting closed up for weeks is a rough test for any passive repellent.

I’d still swap them out in summer. I had some in a small trailer and after a few weeks the smell was basically gone, so I doubt they were doing much at that point. Every couple weeks seems safer when it’s hot and closed up.

Two to four weeks is the honest answer, and summer heat pushes it toward the short end of that. I’ve had a pouch in the back of a parked SUV turn basically scentless in about 10 days during a July stretch, while the same kind of pouch in a shaded garage still had something left after three weeks. Same product, different oven. Heat just cooks the oils off faster, it’s not complicated.

So if your RV is baking in a storage lot, I’d swap closer to every two weeks than every month. Not because mice suddenly swarm the second the smell fades, but because you’re basically guessing after that point. The pouch doesn’t announce when it’s done. I just write the date on mine and go by that instead of sniffing around like an idiot.

I’ve used them in a parked car, not an RV, and after a couple weeks in the sun the scent was pretty much gone. In summer I’d swap them sooner than the label says.

I’d ignore the whole “they’re done after a couple weeks” thing and just go by whether you still catch a whiff when you open the door after a hot stretch. My parents leave a couple in their camper that sits most of the summer, and they only bother replacing them when the smell fades, not on a calendar. If yours are still noticeable, they’re still doing their job.