I used it for the
"I used it for the first time today. It worked better than I expected. I'm very impressed with it and I would recommend it to any size bee keeper, big and small. I have 8 hives with plans to expand."















Pairs well with
The cordless, battery-powered oxalic acid vaporizer trusted by thousands of beekeepers for fast, effective Varroa mite control.
Made in Hungary by InstantVap and sold, serviced and warrantied in the U.S. by Lorob Bees, the InstantVap delivers precise hive treatments, about 25 seconds per 2 g dose and about 45 seconds at 4 g, without the hassle of cords, compressors, or long setup times. Whether you're a hobbyist or professional, this vaporizer gives you power, portability, and peace of mind.
| Treatment time | About 25 seconds per 2 g dose, about 45 seconds per 4 g |
|---|---|
| Dose | Adjustable 1–4 g, tool-free dispenser |
| Weight without battery | 1.55 kg (3.4 lb) |
| Battery socket | DeWalt 20V, Milwaukee M18, Makita 18V LXT, Ridgid 18V, Bosch 18V or Metabo HPT 18V, chosen at checkout. Battery not included; 5Ah or larger recommended |
| Power | 250 W, 14 A |
| Working temperature | 230 °C (445 °F) default, adjustable 200–260 °C |
| Warranty and service | 2-year parts warranty; repaired in the USA by Lorob Bees, Baltimore MD |
| Made in | Hungary |
Batteries are not included. The InstantVap works with the following battery types:
Recommended: Use 5Ah or larger batteries for optimal performance. Available at Home Depot, Lowe’s, or other tool suppliers.
Environmental conditions such as air temperature can affect runtime. For improved performance in cooler weather, consider adding the Silicone Insulation Roof Accessory, which can boost efficiency by up to 20%.
Crafted with precision and backed by a 2-year parts warranty. All warranty support is handled in the United States by Lorob Bees in Baltimore — fast, easy, and hassle-free.
📄 View the User Manual (InstantVap manuals, quick start, cleaning and US service, all on one page at Lorob Bees)
Oxalic acid vaporization is a highly effective method for controlling varroa mites — especially when applied at the right time. Like any treatment, its success depends on colony conditions.
Oxalic acid targets mites that are riding on adult bees, but it can’t reach mites sealed under wax-capped brood. For this reason, it works best during periods when your hive is naturally broodless or experiencing a temporary brood break.
Ideal times to treat include:
These windows give oxalic acid vapor a clear path to nearly every mite in the colony, making treatment far more effective and helping your bees thrive.
Q: Does the InstantVap come with a battery?
A: No, batteries are not included. The unit is compatible with major-brand batteries including DeWalt, Milwaukee, Makita, Rigid, and Bosch. We recommend using 5Ah or larger batteries for best performance.
Q: Can I use a Ryobi battery with InstantVap?
A: Yes — we offer a Ryobi-to-DeWalt adapter that works with any of our DeWalt-compatible models (Original, Compact, or Lite). Just make sure you're using the DeWalt version of the vaporizer.
Q: What kind of oxalic acid should I use?
A: Always use an EPA-approved product like EZ-OX® Oxalic Acid, which is pre-measured and safe for use in beekeeping.
Q: How long does it take to treat one hive?
A: About 25 seconds for a 2 g dose and about 45 seconds for a 4 g dose. The InstantVap is one of the fastest and most efficient vaporization tools available.
Q: How many hives can I treat per battery charge?
A: This depends on the battery and dosage used. For example, a 6Ah DeWalt battery can treat up to 22 hives using 4g doses, or up to 44 hives with 2g doses. See the full dosage chart above for more estimates.
Q: Is safety gear required?
A: Yes. We strongly recommend wearing protective gear when vaporizing oxalic acid. Our top choice is the PD-101 Full Face Respirator, which offers full organic vapor and particulate protection.
Q: What accessories do you recommend?
A: The InstantVap Carry Case is a popular upgrade — it protects your unit during storage and travel, keeps your gear organized, and fits batteries, oxalic acid, and accessories. You can also add a Silicone Insulation Roof to increase efficiency in cooler temperatures, and our Ryobi Adapter for added battery flexibility.
The Original is the full-size workhorse. If you want something lighter, faster or less expensive, the rest of the line is here:
Or see all four side by side, with prices, treatment times and battery guidance, on our oxalic acid vaporizers page.
All units are backed by the same warranty, support, and compatibility with major-brand batteries.
Help other beekeepers make informed choices by leaving us a review! Whether it's a time-saving tip or your first impression, your feedback helps strengthen the community and guide improvements. Scroll to the bottom of this page to share your experience!

InstantVap 18V Original Oxalic Acid Vaporizer
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
2-year parts warranty
Every InstantVap carries a 2-year parts warranty, and all warranty and repair work is done in-house by our own technicians rather than sent out to a third party. Start a request on our Service and Warranty page.
Before you email us
Service questions get answered fastest when your first message includes the date of purchase, your battery brand and amp-hour rating, where you bought the battery, and which model you own.
Setup and cleaning
First treatment coming up? Getting Started with InstantVap walks through setup, Cleaning an InstantVap 18V covers the plunger and nozzle, and our YouTube channel has the same steps on video.
Returns
Unused, undamaged items can be returned within 30 days of purchase with no restocking fee. Return shipping is yours unless we filled the order incorrectly, in which case we cover it both ways.
Overall rating: 4.88189 / 5 from 381 reviews.
The InstantVap 18V Original Oxalic Acid Vaporizer is a highly regarded tool among beekeepers for its fast and effective Varroa mite control. Users praise its cordless design, adjustable dosage, and compatibility with major-brand batteries. The device is lauded for its durability, ease of use, and efficient treatment times, making it a valuable addition to any beekeeper's toolkit.
Review topics: [].
"I used it for the first time today. It worked better than I expected. I'm very impressed with it and I would recommend it to any size bee keeper, big and small. I have 8 hives with plans to expand."
"This vaporizer is awesome! The treatment is super fast, easy to use and very effective. I have been using a m18 5ah battery and I can easily treat my 4 hives with that battery but I will upgrade the the m18 forge 8ah in the near future. Lorobbees is an awesome company with a lot of products, thanks!!"
"I have only used it twice. The first time worked great but the second time it kept shutting off during the treatment, it did come back on after a minute of so."
"It’s a great tool add a little problem with low battery called lorob they were so helpful great customer service"
"Absolutely love the InstantVap 18v, works great and I save so much time!"
"Works great and is much faster than before, wish I would have gotten sooner. Only drawback is you need a few batteries, i can do about 5 hives on 5 ah dewalt battery. Could be that my batteries are several years old but just have to have a few charged up ready to go."
"So easy to use and Such a time saver!"
"So easy to use and safe for user and bees! Another great tool in the box for goto mite control."
"This works exceptionally well. What used to take hours now takes under 20 minutes."
"Once it gets going, it’s fine but it takes between 30 minutes and 40 minutes for the unit to heat up to the proper temperature and this is during the warmer months using a 20 V battery. I’ve had this for three or four years and it’s always been this way."
DeWalt 20V
Milwaukee M18
Makita 18V LXT
Ridgid 18V
Bosch 18V
Metabo HPT 18V